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Finding the Fourth Proportional to 391,932.28, 587,888.70 and 125,711.56

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Solution

The fourth proportional to 391,932.28, 587,888.70 and 125,711.56 is: 188,564.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,932.28 : 587,888.70 = 125,711.56 : x
  2. Step 2: Convert to fraction form
    391,932.28/587,888.70 = 125,711.56/x
  3. Step 3: Cross multiply
    391,932.28x = 587,888.70 × 125,711.56
  4. Step 4: Simplify right side
    391,932.28x = 73,904,405,583.37
  5. Step 5: Solve for x
    x = 73,904,405,583.37/391,932.28
  6. Step 6: Final answer
    x = 188,564.22

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