Finding the Fourth Proportional to 527,546.70, 727,932.20 and 312,652.08
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Solution
The fourth proportional to 527,546.70, 727,932.20 and 312,652.08 is: 431,411.12
Step by Step Solution
- Step 1: Write the proportion equation
527,546.70 : 727,932.20 = 312,652.08 : x - Step 2: Convert to fraction form
527,546.70/727,932.20 = 312,652.08/x - Step 3: Cross multiply
527,546.70x = 727,932.20 × 312,652.08 - Step 4: Simplify right side
527,546.70x = 227,589,514,865.72 - Step 5: Solve for x
x = 227,589,514,865.72/527,546.70 - Step 6: Final answer
x = 431,411.12
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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.