Finding the Fourth Proportional to 873,412.26, 1,205,332.48 and 491,452.62
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Solution
The fourth proportional to 873,412.26, 1,205,332.48 and 491,452.62 is: 678,217.87
Step by Step Solution
- Step 1: Write the proportion equation
873,412.26 : 1,205,332.48 = 491,452.62 : x - Step 2: Convert to fraction form
873,412.26/1,205,332.48 = 491,452.62/x - Step 3: Cross multiply
873,412.26x = 1,205,332.48 × 491,452.62 - Step 4: Simplify right side
873,412.26x = 592,363,805,267.10 - Step 5: Solve for x
x = 592,363,805,267.10/873,412.26 - Step 6: Final answer
x = 678,217.87
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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.