the ventriloquist spent 3 times as much on his dummy's wardrobe as he did his own. if the yearly bill for both wardrobes was $1,500, how much did the ventriloquist spend on himself?

Let's assume the amount the ventriloquist spent on his own wardrobe is x.

According to the given condition, the ventriloquist spent 3x on his dummy's wardrobe.
The total amount spent on wardrobes is x + 3x = 4x.
Given that the total bill is $1,500, we can set up the equation: 4x = $1,500.
Dividing both sides of the equation by 4, we get x = $1,500 / 4 = $375.
Therefore, the ventriloquist spent $375 on himself. Answer: \boxed{375}.