Home / 1,351,318.72-1,864,819.98-739,471.61

Finding the Fourth Proportional to 1,351,318.72, 1,864,819.98 and 739,471.61

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Solution

The fourth proportional to 1,351,318.72, 1,864,819.98 and 739,471.61 is: 1,020,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,318.72 : 1,864,819.98 = 739,471.61 : x
  2. Step 2: Convert to fraction form
    1,351,318.72/1,864,819.98 = 739,471.61/x
  3. Step 3: Cross multiply
    1,351,318.72x = 1,864,819.98 × 739,471.61
  4. Step 4: Simplify right side
    1,351,318.72x = 1,378,981,434,136.28
  5. Step 5: Solve for x
    x = 1,378,981,434,136.28/1,351,318.72
  6. Step 6: Final answer
    x = 1,020,470.90

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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.