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Finding the Fourth Proportional to 398,542.40, 597,007.20 and 248,321.60

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Solution

The fourth proportional to 398,542.40, 597,007.20 and 248,321.60 is: 371,979.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,542.40 : 597,007.20 = 248,321.60 : x
  2. Step 2: Convert to fraction form
    398,542.40/597,007.20 = 248,321.60/x
  3. Step 3: Cross multiply
    398,542.40x = 597,007.20 × 248,321.60
  4. Step 4: Simplify right side
    398,542.40x = 148,249,783,115.52
  5. Step 5: Solve for x
    x = 148,249,783,115.52/398,542.40
  6. Step 6: Final answer
    x = 371,979.95

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