Home / 815,517.45-1,223,440.20-683,313.30

Finding the Fourth Proportional to 815,517.45, 1,223,440.20 and 683,313.30

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Solution

The fourth proportional to 815,517.45, 1,223,440.20 and 683,313.30 is: 1,025,107.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,517.45 : 1,223,440.20 = 683,313.30 : x
  2. Step 2: Convert to fraction form
    815,517.45/1,223,440.20 = 683,313.30/x
  3. Step 3: Cross multiply
    815,517.45x = 1,223,440.20 × 683,313.30
  4. Step 4: Simplify right side
    815,517.45x = 835,992,960,414.66
  5. Step 5: Solve for x
    x = 835,992,960,414.66/815,517.45
  6. Step 6: Final answer
    x = 1,025,107.38

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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.