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Finding the Fourth Proportional to 543,658.36, 815,302.77 and 206,617.90

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Solution

The fourth proportional to 543,658.36, 815,302.77 and 206,617.90 is: 309,856.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,658.36 : 815,302.77 = 206,617.90 : x
  2. Step 2: Convert to fraction form
    543,658.36/815,302.77 = 206,617.90/x
  3. Step 3: Cross multiply
    543,658.36x = 815,302.77 × 206,617.90
  4. Step 4: Simplify right side
    543,658.36x = 168,456,146,201.58
  5. Step 5: Solve for x
    x = 168,456,146,201.58/543,658.36
  6. Step 6: Final answer
    x = 309,856.63

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