Home / 1,131,552.73-1,561,160.55-641,469.70

Finding the Fourth Proportional to 1,131,552.73, 1,561,160.55 and 641,469.70

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Solution

The fourth proportional to 1,131,552.73, 1,561,160.55 and 641,469.70 is: 885,011.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,552.73 : 1,561,160.55 = 641,469.70 : x
  2. Step 2: Convert to fraction form
    1,131,552.73/1,561,160.55 = 641,469.70/x
  3. Step 3: Cross multiply
    1,131,552.73x = 1,561,160.55 × 641,469.70
  4. Step 4: Simplify right side
    1,131,552.73x = 1,001,437,189,660.34
  5. Step 5: Solve for x
    x = 1,001,437,189,660.34/1,131,552.73
  6. Step 6: Final answer
    x = 885,011.51

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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.