Home / 1,123,600.78-1,550,569.08-721,892.62

Finding the Fourth Proportional to 1,123,600.78, 1,550,569.08 and 721,892.62

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Solution

The fourth proportional to 1,123,600.78, 1,550,569.08 and 721,892.62 is: 996,211.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,600.78 : 1,550,569.08 = 721,892.62 : x
  2. Step 2: Convert to fraction form
    1,123,600.78/1,550,569.08 = 721,892.62/x
  3. Step 3: Cross multiply
    1,123,600.78x = 1,550,569.08 × 721,892.62
  4. Step 4: Simplify right side
    1,123,600.78x = 1,119,344,375,652.19
  5. Step 5: Solve for x
    x = 1,119,344,375,652.19/1,123,600.78
  6. Step 6: Final answer
    x = 996,211.82

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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.