Finding the Fourth Proportional to 465,446.76, 642,311.28 and 274,521.68
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Solution
The fourth proportional to 465,446.76, 642,311.28 and 274,521.68 is: 378,836.82
Step by Step Solution
- Step 1: Write the proportion equation
465,446.76 : 642,311.28 = 274,521.68 : x - Step 2: Convert to fraction form
465,446.76/642,311.28 = 274,521.68/x - Step 3: Cross multiply
465,446.76x = 642,311.28 × 274,521.68 - Step 4: Simplify right side
465,446.76x = 176,328,371,668.55 - Step 5: Solve for x
x = 176,328,371,668.55/465,446.76 - Step 6: Final answer
x = 378,836.82
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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.