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Finding the Fourth Proportional to 641,107.80, 961,661.70 and 267,082.20

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Solution

The fourth proportional to 641,107.80, 961,661.70 and 267,082.20 is: 400,623.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,107.80 : 961,661.70 = 267,082.20 : x
  2. Step 2: Convert to fraction form
    641,107.80/961,661.70 = 267,082.20/x
  3. Step 3: Cross multiply
    641,107.80x = 961,661.70 × 267,082.20
  4. Step 4: Simplify right side
    641,107.80x = 256,842,722,491.74
  5. Step 5: Solve for x
    x = 256,842,722,491.74/641,107.80
  6. Step 6: Final answer
    x = 400,623.30

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