Finding the Fourth Proportional to 486,963.30, 729,948.15 and 329,207.70
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Solution
The fourth proportional to 486,963.30, 729,948.15 and 329,207.70 is: 493,475.69
Step by Step Solution
- Step 1: Write the proportion equation
486,963.30 : 729,948.15 = 329,207.70 : x - Step 2: Convert to fraction form
486,963.30/729,948.15 = 329,207.70/x - Step 3: Cross multiply
486,963.30x = 729,948.15 × 329,207.70 - Step 4: Simplify right side
486,963.30x = 240,304,551,580.76 - Step 5: Solve for x
x = 240,304,551,580.76/486,963.30 - Step 6: Final answer
x = 493,475.69
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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.