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Finding the Fourth Proportional to 680,751.78, 1,021,758.12 and 344,029.38

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Solution

The fourth proportional to 680,751.78, 1,021,758.12 and 344,029.38 is: 516,362.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,751.78 : 1,021,758.12 = 344,029.38 : x
  2. Step 2: Convert to fraction form
    680,751.78/1,021,758.12 = 344,029.38/x
  3. Step 3: Cross multiply
    680,751.78x = 1,021,758.12 × 344,029.38
  4. Step 4: Simplify right side
    680,751.78x = 351,514,812,533.57
  5. Step 5: Solve for x
    x = 351,514,812,533.57/680,751.78
  6. Step 6: Final answer
    x = 516,362.68

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