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Finding the Fourth Proportional to 391,084.02, 539,695.89 and 212,236.02

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Solution

The fourth proportional to 391,084.02, 539,695.89 and 212,236.02 is: 292,885.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,084.02 : 539,695.89 = 212,236.02 : x
  2. Step 2: Convert to fraction form
    391,084.02/539,695.89 = 212,236.02/x
  3. Step 3: Cross multiply
    391,084.02x = 539,695.89 × 212,236.02
  4. Step 4: Simplify right side
    391,084.02x = 114,542,907,703.96
  5. Step 5: Solve for x
    x = 114,542,907,703.96/391,084.02
  6. Step 6: Final answer
    x = 292,885.68

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