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Finding the Fourth Proportional to 543,912.10, 815,868.15 and 543,912.10

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Solution

The fourth proportional to 543,912.10, 815,868.15 and 543,912.10 is: 815,868.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,912.10 : 815,868.15 = 543,912.10 : x
  2. Step 2: Convert to fraction form
    543,912.10/815,868.15 = 543,912.10/x
  3. Step 3: Cross multiply
    543,912.10x = 815,868.15 × 543,912.10
  4. Step 4: Simplify right side
    543,912.10x = 443,760,558,789.62
  5. Step 5: Solve for x
    x = 443,760,558,789.62/543,912.10
  6. Step 6: Final answer
    x = 815,868.15

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