Finding the Fourth Proportional to 684,218.14, 944,182.88 and 378,276.68
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Solution
The fourth proportional to 684,218.14, 944,182.88 and 378,276.68 is: 522,000.73
Step by Step Solution
- Step 1: Write the proportion equation
684,218.14 : 944,182.88 = 378,276.68 : x - Step 2: Convert to fraction form
684,218.14/944,182.88 = 378,276.68/x - Step 3: Cross multiply
684,218.14x = 944,182.88 × 378,276.68 - Step 4: Simplify right side
684,218.14x = 357,162,367,046.85 - Step 5: Solve for x
x = 357,162,367,046.85/684,218.14 - Step 6: Final answer
x = 522,000.73
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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.