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Finding the Fourth Proportional to 379,042.16, 523,078.05 and 217,928.72

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Solution

The fourth proportional to 379,042.16, 523,078.05 and 217,928.72 is: 300,741.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,042.16 : 523,078.05 = 217,928.72 : x
  2. Step 2: Convert to fraction form
    379,042.16/523,078.05 = 217,928.72/x
  3. Step 3: Cross multiply
    379,042.16x = 523,078.05 × 217,928.72
  4. Step 4: Simplify right side
    379,042.16x = 113,993,729,896.60
  5. Step 5: Solve for x
    x = 113,993,729,896.60/379,042.16
  6. Step 6: Final answer
    x = 300,741.56

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