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Finding the Fourth Proportional to 408,682.77, 613,027.62 and 142,442.85

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Solution

The fourth proportional to 408,682.77, 613,027.62 and 142,442.85 is: 213,665.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,682.77 : 613,027.62 = 142,442.85 : x
  2. Step 2: Convert to fraction form
    408,682.77/613,027.62 = 142,442.85/x
  3. Step 3: Cross multiply
    408,682.77x = 613,027.62 × 142,442.85
  4. Step 4: Simplify right side
    408,682.77x = 87,321,401,321.52
  5. Step 5: Solve for x
    x = 87,321,401,321.52/408,682.77
  6. Step 6: Final answer
    x = 213,665.48

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