Finding the Fourth Proportional to 747,658.26, 1,031,748.57 and 687,472.02
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Solution
The fourth proportional to 747,658.26, 1,031,748.57 and 687,472.02 is: 948,693.16
Step by Step Solution
- Step 1: Write the proportion equation
747,658.26 : 1,031,748.57 = 687,472.02 : x - Step 2: Convert to fraction form
747,658.26/1,031,748.57 = 687,472.02/x - Step 3: Cross multiply
747,658.26x = 1,031,748.57 × 687,472.02 - Step 4: Simplify right side
747,658.26x = 709,298,273,550.01 - Step 5: Solve for x
x = 709,298,273,550.01/747,658.26 - Step 6: Final answer
x = 948,693.16
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.