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Finding the Fourth Proportional to 815,792.80, 1,223,481.84 and 254,884

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Solution

The fourth proportional to 815,792.80, 1,223,481.84 and 254,884 is: 382,261.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,792.80 : 1,223,481.84 = 254,884 : x
  2. Step 2: Convert to fraction form
    815,792.80/1,223,481.84 = 254,884/x
  3. Step 3: Cross multiply
    815,792.80x = 1,223,481.84 × 254,884
  4. Step 4: Simplify right side
    815,792.80x = 311,845,945,306.56
  5. Step 5: Solve for x
    x = 311,845,945,306.56/815,792.80
  6. Step 6: Final answer
    x = 382,261.21

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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.