Finding the Fourth Proportional to 873,621.27, 1,205,397.87 and 491,508.63
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Solution
The fourth proportional to 873,621.27, 1,205,397.87 and 491,508.63 is: 678,169.68
Step by Step Solution
- Step 1: Write the proportion equation
873,621.27 : 1,205,397.87 = 491,508.63 : x - Step 2: Convert to fraction form
873,621.27/1,205,397.87 = 491,508.63/x - Step 3: Cross multiply
873,621.27x = 1,205,397.87 × 491,508.63 - Step 4: Simplify right side
873,621.27x = 592,463,455,688.62 - Step 5: Solve for x
x = 592,463,455,688.62/873,621.27 - Step 6: Final answer
x = 678,169.68
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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.