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Finding the Fourth Proportional to 554,796.80, 832,195.20 and 422,086.40

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Solution

The fourth proportional to 554,796.80, 832,195.20 and 422,086.40 is: 633,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,796.80 : 832,195.20 = 422,086.40 : x
  2. Step 2: Convert to fraction form
    554,796.80/832,195.20 = 422,086.40/x
  3. Step 3: Cross multiply
    554,796.80x = 832,195.20 × 422,086.40
  4. Step 4: Simplify right side
    554,796.80x = 351,258,276,065.28
  5. Step 5: Solve for x
    x = 351,258,276,065.28/554,796.80
  6. Step 6: Final answer
    x = 633,129.60

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