Home / 812,369.55-1,121,105.00-449,793.41

Finding the Fourth Proportional to 812,369.55, 1,121,105.00 and 449,793.41

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Solution

The fourth proportional to 812,369.55, 1,121,105.00 and 449,793.41 is: 620,734.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,369.55 : 1,121,105.00 = 449,793.41 : x
  2. Step 2: Convert to fraction form
    812,369.55/1,121,105.00 = 449,793.41/x
  3. Step 3: Cross multiply
    812,369.55x = 1,121,105.00 × 449,793.41
  4. Step 4: Simplify right side
    812,369.55x = 504,265,633,063.56
  5. Step 5: Solve for x
    x = 504,265,633,063.56/812,369.55
  6. Step 6: Final answer
    x = 620,734.29

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1.5x scale

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.