Finding the Fourth Proportional to 442,882.20, 664,323.30 and 418,387.80
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Solution
The fourth proportional to 442,882.20, 664,323.30 and 418,387.80 is: 627,581.70
Step by Step Solution
- Step 1: Write the proportion equation
442,882.20 : 664,323.30 = 418,387.80 : x - Step 2: Convert to fraction form
442,882.20/664,323.30 = 418,387.80/x - Step 3: Cross multiply
442,882.20x = 664,323.30 × 418,387.80 - Step 4: Simplify right side
442,882.20x = 277,944,763,975.74 - Step 5: Solve for x
x = 277,944,763,975.74/442,882.20 - Step 6: Final answer
x = 627,581.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.