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Finding the Fourth Proportional to 414,921.30, 622,296.90 and 115,326.60

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Solution

The fourth proportional to 414,921.30, 622,296.90 and 115,326.60 is: 172,966.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,921.30 : 622,296.90 = 115,326.60 : x
  2. Step 2: Convert to fraction form
    414,921.30/622,296.90 = 115,326.60/x
  3. Step 3: Cross multiply
    414,921.30x = 622,296.90 × 115,326.60
  4. Step 4: Simplify right side
    414,921.30x = 71,767,385,667.54
  5. Step 5: Solve for x
    x = 71,767,385,667.54/414,921.30
  6. Step 6: Final answer
    x = 172,966.26

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