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Finding the Fourth Proportional to 411,831.76, 617,793.72 and 131,283.92

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Solution

The fourth proportional to 411,831.76, 617,793.72 and 131,283.92 is: 196,940.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,831.76 : 617,793.72 = 131,283.92 : x
  2. Step 2: Convert to fraction form
    411,831.76/617,793.72 = 131,283.92/x
  3. Step 3: Cross multiply
    411,831.76x = 617,793.72 × 131,283.92
  4. Step 4: Simplify right side
    411,831.76x = 81,106,381,312.98
  5. Step 5: Solve for x
    x = 81,106,381,312.98/411,831.76
  6. Step 6: Final answer
    x = 196,940.57

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