Home / 1,419,251.10-2,129,459.85-521,123.10

Finding the Fourth Proportional to 1,419,251.10, 2,129,459.85 and 521,123.10

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Solution

The fourth proportional to 1,419,251.10, 2,129,459.85 and 521,123.10 is: 781,898.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,251.10 : 2,129,459.85 = 521,123.10 : x
  2. Step 2: Convert to fraction form
    1,419,251.10/2,129,459.85 = 521,123.10/x
  3. Step 3: Cross multiply
    1,419,251.10x = 2,129,459.85 × 521,123.10
  4. Step 4: Simplify right side
    1,419,251.10x = 1,109,710,718,357.53
  5. Step 5: Solve for x
    x = 1,109,710,718,357.53/1,419,251.10
  6. Step 6: Final answer
    x = 781,898.79

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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.