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Finding the Fourth Proportional to 458,453.20, 687,744.60 and 142,877.20

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Solution

The fourth proportional to 458,453.20, 687,744.60 and 142,877.20 is: 214,335.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,453.20 : 687,744.60 = 142,877.20 : x
  2. Step 2: Convert to fraction form
    458,453.20/687,744.60 = 142,877.20/x
  3. Step 3: Cross multiply
    458,453.20x = 687,744.60 × 142,877.20
  4. Step 4: Simplify right side
    458,453.20x = 98,263,022,763.12
  5. Step 5: Solve for x
    x = 98,263,022,763.12/458,453.20
  6. Step 6: Final answer
    x = 214,335.99

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