Finding the Fourth Proportional to 486,979.53, 672,018.86 and 272,121.36
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Solution
The fourth proportional to 486,979.53, 672,018.86 and 272,121.36 is: 375,520.28
Step by Step Solution
- Step 1: Write the proportion equation
486,979.53 : 672,018.86 = 272,121.36 : x - Step 2: Convert to fraction form
486,979.53/672,018.86 = 272,121.36/x - Step 3: Cross multiply
486,979.53x = 672,018.86 × 272,121.36 - Step 4: Simplify right side
486,979.53x = 182,870,689,959.24 - Step 5: Solve for x
x = 182,870,689,959.24/486,979.53 - Step 6: Final answer
x = 375,520.28
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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.