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Finding the Fourth Proportional to 419,745.20, 629,694.60 and 170,452.40

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Solution

The fourth proportional to 419,745.20, 629,694.60 and 170,452.40 is: 255,709.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,745.20 : 629,694.60 = 170,452.40 : x
  2. Step 2: Convert to fraction form
    419,745.20/629,694.60 = 170,452.40/x
  3. Step 3: Cross multiply
    419,745.20x = 629,694.60 × 170,452.40
  4. Step 4: Simplify right side
    419,745.20x = 107,332,955,837.04
  5. Step 5: Solve for x
    x = 107,332,955,837.04/419,745.20
  6. Step 6: Final answer
    x = 255,709.79

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