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Finding the Fourth Proportional to 498,489.96, 687,912.64 and 272,135.46

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Solution

The fourth proportional to 498,489.96, 687,912.64 and 272,135.46 is: 375,545.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,489.96 : 687,912.64 = 272,135.46 : x
  2. Step 2: Convert to fraction form
    498,489.96/687,912.64 = 272,135.46/x
  3. Step 3: Cross multiply
    498,489.96x = 687,912.64 × 272,135.46
  4. Step 4: Simplify right side
    498,489.96x = 187,205,421,776.55
  5. Step 5: Solve for x
    x = 187,205,421,776.55/498,489.96
  6. Step 6: Final answer
    x = 375,545.02

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