Home / 1,393,791.33-1,923,198.89-820,945.56

Finding the Fourth Proportional to 1,393,791.33, 1,923,198.89 and 820,945.56

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Solution

The fourth proportional to 1,393,791.33, 1,923,198.89 and 820,945.56 is: 1,132,767.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,791.33 : 1,923,198.89 = 820,945.56 : x
  2. Step 2: Convert to fraction form
    1,393,791.33/1,923,198.89 = 820,945.56/x
  3. Step 3: Cross multiply
    1,393,791.33x = 1,923,198.89 × 820,945.56
  4. Step 4: Simplify right side
    1,393,791.33x = 1,578,841,585,637.70
  5. Step 5: Solve for x
    x = 1,578,841,585,637.70/1,393,791.33
  6. Step 6: Final answer
    x = 1,132,767.55

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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.