Finding the Fourth Proportional to 512,738.47, 707,593.35 and 283,310.54
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Solution
The fourth proportional to 512,738.47, 707,593.35 and 283,310.54 is: 390,976.43
Step by Step Solution
- Step 1: Write the proportion equation
512,738.47 : 707,593.35 = 283,310.54 : x - Step 2: Convert to fraction form
512,738.47/707,593.35 = 283,310.54/x - Step 3: Cross multiply
512,738.47x = 707,593.35 × 283,310.54 - Step 4: Simplify right side
512,738.47x = 200,468,654,088.91 - Step 5: Solve for x
x = 200,468,654,088.91/512,738.47 - Step 6: Final answer
x = 390,976.43
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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.