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Finding the Fourth Proportional to 589,617.20, 884,425.80 and 400,660.40

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Solution

The fourth proportional to 589,617.20, 884,425.80 and 400,660.40 is: 600,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,617.20 : 884,425.80 = 400,660.40 : x
  2. Step 2: Convert to fraction form
    589,617.20/884,425.80 = 400,660.40/x
  3. Step 3: Cross multiply
    589,617.20x = 884,425.80 × 400,660.40
  4. Step 4: Simplify right side
    589,617.20x = 354,354,394,798.32
  5. Step 5: Solve for x
    x = 354,354,394,798.32/589,617.20
  6. Step 6: Final answer
    x = 600,990.60

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