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Finding the Fourth Proportional to 591,705.20, 887,557.80 and 217,679.60

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Solution

The fourth proportional to 591,705.20, 887,557.80 and 217,679.60 is: 326,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,705.20 : 887,557.80 = 217,679.60 : x
  2. Step 2: Convert to fraction form
    591,705.20/887,557.80 = 217,679.60/x
  3. Step 3: Cross multiply
    591,705.20x = 887,557.80 × 217,679.60
  4. Step 4: Simplify right side
    591,705.20x = 193,203,226,880.88
  5. Step 5: Solve for x
    x = 193,203,226,880.88/591,705.20
  6. Step 6: Final answer
    x = 326,519.40

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