Finding the Fourth Proportional to 420,780.95, 632,105.61 and 260,974.99
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Solution
The fourth proportional to 420,780.95, 632,105.61 and 260,974.99 is: 392,041.88
Step by Step Solution
- Step 1: Write the proportion equation
420,780.95 : 632,105.61 = 260,974.99 : x - Step 2: Convert to fraction form
420,780.95/632,105.61 = 260,974.99/x - Step 3: Cross multiply
420,780.95x = 632,105.61 × 260,974.99 - Step 4: Simplify right side
420,780.95x = 164,963,753,668.43 - Step 5: Solve for x
x = 164,963,753,668.43/420,780.95 - Step 6: Final answer
x = 392,041.88
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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.