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Finding the Fourth Proportional to 414,851.20, 622,276.80 and 396,649.60

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Solution

The fourth proportional to 414,851.20, 622,276.80 and 396,649.60 is: 594,974.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,851.20 : 622,276.80 = 396,649.60 : x
  2. Step 2: Convert to fraction form
    414,851.20/622,276.80 = 396,649.60/x
  3. Step 3: Cross multiply
    414,851.20x = 622,276.80 × 396,649.60
  4. Step 4: Simplify right side
    414,851.20x = 246,825,843,809.28
  5. Step 5: Solve for x
    x = 246,825,843,809.28/414,851.20
  6. Step 6: Final answer
    x = 594,974.40

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