Home / 1,123,286.60-1,684,937.10-449,424.20

Finding the Fourth Proportional to 1,123,286.60, 1,684,937.10 and 449,424.20

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Solution

The fourth proportional to 1,123,286.60, 1,684,937.10 and 449,424.20 is: 674,139.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,286.60 : 1,684,937.10 = 449,424.20 : x
  2. Step 2: Convert to fraction form
    1,123,286.60/1,684,937.10 = 449,424.20/x
  3. Step 3: Cross multiply
    1,123,286.60x = 1,684,937.10 × 449,424.20
  4. Step 4: Simplify right side
    1,123,286.60x = 757,251,508,217.82
  5. Step 5: Solve for x
    x = 757,251,508,217.82/1,123,286.60
  6. Step 6: Final answer
    x = 674,139.18

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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.