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Finding the Fourth Proportional to 413,729.20, 620,766.60 and 133,332.40

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Solution

The fourth proportional to 413,729.20, 620,766.60 and 133,332.40 is: 200,054.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,729.20 : 620,766.60 = 133,332.40 : x
  2. Step 2: Convert to fraction form
    413,729.20/620,766.60 = 133,332.40/x
  3. Step 3: Cross multiply
    413,729.20x = 620,766.60 × 133,332.40
  4. Step 4: Simplify right side
    413,729.20x = 82,768,300,617.84
  5. Step 5: Solve for x
    x = 82,768,300,617.84/413,729.20
  6. Step 6: Final answer
    x = 200,054.29

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