I think if companies convert 10% of thier cash to Bitcoin it will cause rise making it to reach $430k !
If we can have at least half of the world invest in Bitcoin I'm sure Bitcoin will reach $400k or even more, just imagine everyone investing at least $20 I am not good in math but with the huge population I'm sure the demand will be high.
If half of the world population should make their investment on bitcoin then this price of tagging bitcoin to be $400k shouldn't be becasue the price will move even more higher than expected. But the world is likely to invest half of their wealth into bitcoin which many thought about negatively, but until they come to the true knowledge of this technology then such figures shouldn't be our concerns.