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Finding the Fourth Proportional to 419,978.40, 629,803.80 and 183,159.60

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Solution

The fourth proportional to 419,978.40, 629,803.80 and 183,159.60 is: 274,667.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,978.40 : 629,803.80 = 183,159.60 : x
  2. Step 2: Convert to fraction form
    419,978.40/629,803.80 = 183,159.60/x
  3. Step 3: Cross multiply
    419,978.40x = 629,803.80 × 183,159.60
  4. Step 4: Simplify right side
    419,978.40x = 115,354,612,086.48
  5. Step 5: Solve for x
    x = 115,354,612,086.48/419,978.40
  6. Step 6: Final answer
    x = 274,667.96

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