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Finding the Fourth Proportional to 591,857.20, 887,785.80 and 217,831.60

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Solution

The fourth proportional to 591,857.20, 887,785.80 and 217,831.60 is: 326,747.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,857.20 : 887,785.80 = 217,831.60 : x
  2. Step 2: Convert to fraction form
    591,857.20/887,785.80 = 217,831.60/x
  3. Step 3: Cross multiply
    591,857.20x = 887,785.80 × 217,831.60
  4. Step 4: Simplify right side
    591,857.20x = 193,387,801,271.28
  5. Step 5: Solve for x
    x = 193,387,801,271.28/591,857.20
  6. Step 6: Final answer
    x = 326,747.40

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