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Finding the Fourth Proportional to 431,349.93, 647,024.90 and 131,831.37

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Solution

The fourth proportional to 431,349.93, 647,024.90 and 131,831.37 is: 197,747.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,349.93 : 647,024.90 = 131,831.37 : x
  2. Step 2: Convert to fraction form
    431,349.93/647,024.90 = 131,831.37/x
  3. Step 3: Cross multiply
    431,349.93x = 647,024.90 × 131,831.37
  4. Step 4: Simplify right side
    431,349.93x = 85,298,178,331.96
  5. Step 5: Solve for x
    x = 85,298,178,331.96/431,349.93
  6. Step 6: Final answer
    x = 197,747.06

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