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Finding the Fourth Proportional to 431,978.86, 647,894.45 and 116,361.95

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Solution

The fourth proportional to 431,978.86, 647,894.45 and 116,361.95 is: 174,523.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,978.86 : 647,894.45 = 116,361.95 : x
  2. Step 2: Convert to fraction form
    431,978.86/647,894.45 = 116,361.95/x
  3. Step 3: Cross multiply
    431,978.86x = 647,894.45 × 116,361.95
  4. Step 4: Simplify right side
    431,978.86x = 75,390,261,014.37
  5. Step 5: Solve for x
    x = 75,390,261,014.37/431,978.86
  6. Step 6: Final answer
    x = 174,523.04

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