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Finding the Fourth Proportional to 391,909.82, 587,642.39 and 358,474.24

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Solution

The fourth proportional to 391,909.82, 587,642.39 and 358,474.24 is: 537,507.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,909.82 : 587,642.39 = 358,474.24 : x
  2. Step 2: Convert to fraction form
    391,909.82/587,642.39 = 358,474.24/x
  3. Step 3: Cross multiply
    391,909.82x = 587,642.39 × 358,474.24
  4. Step 4: Simplify right side
    391,909.82x = 210,654,654,416.45
  5. Step 5: Solve for x
    x = 210,654,654,416.45/391,909.82
  6. Step 6: Final answer
    x = 537,507.98

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