Home / 1,266,391.38-1,747,620.83-685,614.66

Finding the Fourth Proportional to 1,266,391.38, 1,747,620.83 and 685,614.66

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Solution

The fourth proportional to 1,266,391.38, 1,747,620.83 and 685,614.66 is: 946,148.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,391.38 : 1,747,620.83 = 685,614.66 : x
  2. Step 2: Convert to fraction form
    1,266,391.38/1,747,620.83 = 685,614.66/x
  3. Step 3: Cross multiply
    1,266,391.38x = 1,747,620.83 × 685,614.66
  4. Step 4: Simplify right side
    1,266,391.38x = 1,198,194,462,883.40
  5. Step 5: Solve for x
    x = 1,198,194,462,883.40/1,266,391.38
  6. Step 6: Final answer
    x = 946,148.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.