Home / 391,935.24-587,839.88-107,559.36

Finding the Fourth Proportional to 391,935.24, 587,839.88 and 107,559.36

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Solution

The fourth proportional to 391,935.24, 587,839.88 and 107,559.36 is: 161,321.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,935.24 : 587,839.88 = 107,559.36 : x
  2. Step 2: Convert to fraction form
    391,935.24/587,839.88 = 107,559.36/x
  3. Step 3: Cross multiply
    391,935.24x = 587,839.88 × 107,559.36
  4. Step 4: Simplify right side
    391,935.24x = 63,227,681,275.28
  5. Step 5: Solve for x
    x = 63,227,681,275.28/391,935.24
  6. Step 6: Final answer
    x = 161,321.76

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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.