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Finding the Fourth Proportional to 391,433.88, 587,376.81 and 211,519.92

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Solution

The fourth proportional to 391,433.88, 587,376.81 and 211,519.92 is: 317,402.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,433.88 : 587,376.81 = 211,519.92 : x
  2. Step 2: Convert to fraction form
    391,433.88/587,376.81 = 211,519.92/x
  3. Step 3: Cross multiply
    391,433.88x = 587,376.81 × 211,519.92
  4. Step 4: Simplify right side
    391,433.88x = 124,241,895,861.06
  5. Step 5: Solve for x
    x = 124,241,895,861.06/391,433.88
  6. Step 6: Final answer
    x = 317,402.00

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