Finding the Fourth Proportional to 873,463.92, 1,205,398.62 and 491,490.72
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Solution
The fourth proportional to 873,463.92, 1,205,398.62 and 491,490.72 is: 678,267.55
Step by Step Solution
- Step 1: Write the proportion equation
873,463.92 : 1,205,398.62 = 491,490.72 : x - Step 2: Convert to fraction form
873,463.92/1,205,398.62 = 491,490.72/x - Step 3: Cross multiply
873,463.92x = 1,205,398.62 × 491,490.72 - Step 4: Simplify right side
873,463.92x = 592,442,235,630.81 - Step 5: Solve for x
x = 592,442,235,630.81/873,463.92 - Step 6: Final answer
x = 678,267.55
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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.