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Finding the Fourth Proportional to 482,600.80, 723,901.20 and 429,456.70

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Solution

The fourth proportional to 482,600.80, 723,901.20 and 429,456.70 is: 644,185.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,600.80 : 723,901.20 = 429,456.70 : x
  2. Step 2: Convert to fraction form
    482,600.80/723,901.20 = 429,456.70/x
  3. Step 3: Cross multiply
    482,600.80x = 723,901.20 × 429,456.70
  4. Step 4: Simplify right side
    482,600.80x = 310,884,220,478.04
  5. Step 5: Solve for x
    x = 310,884,220,478.04/482,600.80
  6. Step 6: Final answer
    x = 644,185.05

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Similar ratio
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1.5x scale

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.