Finding the Fourth Proportional to 931,107.39, 1,395,907.36 and 291,081.62
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Solution
The fourth proportional to 931,107.39, 1,395,907.36 and 291,081.62 is: 436,386.80
Step by Step Solution
- Step 1: Write the proportion equation
931,107.39 : 1,395,907.36 = 291,081.62 : x - Step 2: Convert to fraction form
931,107.39/1,395,907.36 = 291,081.62/x - Step 3: Cross multiply
931,107.39x = 1,395,907.36 × 291,081.62 - Step 4: Simplify right side
931,107.39x = 406,322,975,718.72 - Step 5: Solve for x
x = 406,322,975,718.72/931,107.39 - Step 6: Final answer
x = 436,386.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.