Finding the Fourth Proportional to 442,827.20, 664,240.80 and 418,332.80
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Solution
The fourth proportional to 442,827.20, 664,240.80 and 418,332.80 is: 627,499.20
Step by Step Solution
- Step 1: Write the proportion equation
442,827.20 : 664,240.80 = 418,332.80 : x - Step 2: Convert to fraction form
442,827.20/664,240.80 = 418,332.80/x - Step 3: Cross multiply
442,827.20x = 664,240.80 × 418,332.80 - Step 4: Simplify right side
442,827.20x = 277,873,713,738.24 - Step 5: Solve for x
x = 277,873,713,738.24/442,827.20 - Step 6: Final answer
x = 627,499.20
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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.