Finding the Fourth Proportional to 512,140.93, 769,207.29 and 417,440.59
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Solution
The fourth proportional to 512,140.93, 769,207.29 and 417,440.59 is: 626,972.63
Step by Step Solution
- Step 1: Write the proportion equation
512,140.93 : 769,207.29 = 417,440.59 : x - Step 2: Convert to fraction form
512,140.93/769,207.29 = 417,440.59/x - Step 3: Cross multiply
512,140.93x = 769,207.29 × 417,440.59 - Step 4: Simplify right side
512,140.93x = 321,098,344,969.90 - Step 5: Solve for x
x = 321,098,344,969.90/512,140.93 - Step 6: Final answer
x = 626,972.63
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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.