Home / 815,249.10-1,223,131.98-635,949.28

Finding the Fourth Proportional to 815,249.10, 1,223,131.98 and 635,949.28

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Solution

The fourth proportional to 815,249.10, 1,223,131.98 and 635,949.28 is: 954,125.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,249.10 : 1,223,131.98 = 635,949.28 : x
  2. Step 2: Convert to fraction form
    815,249.10/1,223,131.98 = 635,949.28/x
  3. Step 3: Cross multiply
    815,249.10x = 1,223,131.98 × 635,949.28
  4. Step 4: Simplify right side
    815,249.10x = 777,849,902,025.97
  5. Step 5: Solve for x
    x = 777,849,902,025.97/815,249.10
  6. Step 6: Final answer
    x = 954,125.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.