Home / 659,972.39-988,158.28-499,562.09

Finding the Fourth Proportional to 659,972.39, 988,158.28 and 499,562.09

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Solution

The fourth proportional to 659,972.39, 988,158.28 and 499,562.09 is: 747,980.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,972.39 : 988,158.28 = 499,562.09 : x
  2. Step 2: Convert to fraction form
    659,972.39/988,158.28 = 499,562.09/x
  3. Step 3: Cross multiply
    659,972.39x = 988,158.28 × 499,562.09
  4. Step 4: Simplify right side
    659,972.39x = 493,646,415,607.61
  5. Step 5: Solve for x
    x = 493,646,415,607.61/659,972.39
  6. Step 6: Final answer
    x = 747,980.41

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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.