Finding the Fourth Proportional to 442,861.20, 664,291.80 and 418,366.80
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Solution
The fourth proportional to 442,861.20, 664,291.80 and 418,366.80 is: 627,550.20
Step by Step Solution
- Step 1: Write the proportion equation
442,861.20 : 664,291.80 = 418,366.80 : x - Step 2: Convert to fraction form
442,861.20/664,291.80 = 418,366.80/x - Step 3: Cross multiply
442,861.20x = 664,291.80 × 418,366.80 - Step 4: Simplify right side
442,861.20x = 277,917,634,632.24 - Step 5: Solve for x
x = 277,917,634,632.24/442,861.20 - Step 6: Final answer
x = 627,550.20
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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.