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Finding the Fourth Proportional to 822,033.80, 1,232,129.10 and 422,520.20

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Solution

The fourth proportional to 822,033.80, 1,232,129.10 and 422,520.20 is: 633,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,033.80 : 1,232,129.10 = 422,520.20 : x
  2. Step 2: Convert to fraction form
    822,033.80/1,232,129.10 = 422,520.20/x
  3. Step 3: Cross multiply
    822,033.80x = 1,232,129.10 × 422,520.20
  4. Step 4: Simplify right side
    822,033.80x = 520,599,433,757.82
  5. Step 5: Solve for x
    x = 520,599,433,757.82/822,033.80
  6. Step 6: Final answer
    x = 633,306.60

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