Home / 659,839.15-989,561.29-344,123.83

Finding the Fourth Proportional to 659,839.15, 989,561.29 and 344,123.83

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Solution

The fourth proportional to 659,839.15, 989,561.29 and 344,123.83 is: 516,082.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,839.15 : 989,561.29 = 344,123.83 : x
  2. Step 2: Convert to fraction form
    659,839.15/989,561.29 = 344,123.83/x
  3. Step 3: Cross multiply
    659,839.15x = 989,561.29 × 344,123.83
  4. Step 4: Simplify right side
    659,839.15x = 340,531,621,134.54
  5. Step 5: Solve for x
    x = 340,531,621,134.54/659,839.15
  6. Step 6: Final answer
    x = 516,082.78

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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.