Finding the Fourth Proportional to 515,658.24, 711,132.48 and 343,672.80
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Solution
The fourth proportional to 515,658.24, 711,132.48 and 343,672.80 is: 473,951.29
Step by Step Solution
- Step 1: Write the proportion equation
515,658.24 : 711,132.48 = 343,672.80 : x - Step 2: Convert to fraction form
515,658.24/711,132.48 = 343,672.80/x - Step 3: Cross multiply
515,658.24x = 711,132.48 × 343,672.80 - Step 4: Simplify right side
515,658.24x = 244,396,890,572.54 - Step 5: Solve for x
x = 244,396,890,572.54/515,658.24 - Step 6: Final answer
x = 473,951.29
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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.