Home / 1,425,835.68-2,138,753.52-479,206.40

Finding the Fourth Proportional to 1,425,835.68, 2,138,753.52 and 479,206.40

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Solution

The fourth proportional to 1,425,835.68, 2,138,753.52 and 479,206.40 is: 718,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,835.68 : 2,138,753.52 = 479,206.40 : x
  2. Step 2: Convert to fraction form
    1,425,835.68/2,138,753.52 = 479,206.40/x
  3. Step 3: Cross multiply
    1,425,835.68x = 2,138,753.52 × 479,206.40
  4. Step 4: Simplify right side
    1,425,835.68x = 1,024,904,374,806.53
  5. Step 5: Solve for x
    x = 1,024,904,374,806.53/1,425,835.68
  6. Step 6: Final answer
    x = 718,809.60

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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.