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Finding the Fourth Proportional to 664,395.20, 996,557.26 and 327,099.66

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Solution

The fourth proportional to 664,395.20, 996,557.26 and 327,099.66 is: 490,631.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,395.20 : 996,557.26 = 327,099.66 : x
  2. Step 2: Convert to fraction form
    664,395.20/996,557.26 = 327,099.66/x
  3. Step 3: Cross multiply
    664,395.20x = 996,557.26 × 327,099.66
  4. Step 4: Simplify right side
    664,395.20x = 325,973,534,298.25
  5. Step 5: Solve for x
    x = 325,973,534,298.25/664,395.20
  6. Step 6: Final answer
    x = 490,631.98

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