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Finding the Fourth Proportional to 385,391.79, 577,943.91 and 132,600.78

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Solution

The fourth proportional to 385,391.79, 577,943.91 and 132,600.78 is: 198,851.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,391.79 : 577,943.91 = 132,600.78 : x
  2. Step 2: Convert to fraction form
    385,391.79/577,943.91 = 132,600.78/x
  3. Step 3: Cross multiply
    385,391.79x = 577,943.91 × 132,600.78
  4. Step 4: Simplify right side
    385,391.79x = 76,635,813,262.25
  5. Step 5: Solve for x
    x = 76,635,813,262.25/385,391.79
  6. Step 6: Final answer
    x = 198,851.70

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