Home / 815,917.85-1,223,115.85-275,798.33

Finding the Fourth Proportional to 815,917.85, 1,223,115.85 and 275,798.33

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Solution

The fourth proportional to 815,917.85, 1,223,115.85 and 275,798.33 is: 413,440.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,917.85 : 1,223,115.85 = 275,798.33 : x
  2. Step 2: Convert to fraction form
    815,917.85/1,223,115.85 = 275,798.33/x
  3. Step 3: Cross multiply
    815,917.85x = 1,223,115.85 × 275,798.33
  4. Step 4: Simplify right side
    815,917.85x = 337,333,304,584.59
  5. Step 5: Solve for x
    x = 337,333,304,584.59/815,917.85
  6. Step 6: Final answer
    x = 413,440.28

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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.