Home / 812,361.42-1,121,093.76-449,785.26

Finding the Fourth Proportional to 812,361.42, 1,121,093.76 and 449,785.26

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Solution

The fourth proportional to 812,361.42, 1,121,093.76 and 449,785.26 is: 620,723.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,361.42 : 1,121,093.76 = 449,785.26 : x
  2. Step 2: Convert to fraction form
    812,361.42/1,121,093.76 = 449,785.26/x
  3. Step 3: Cross multiply
    812,361.42x = 1,121,093.76 × 449,785.26
  4. Step 4: Simplify right side
    812,361.42x = 504,251,442,435.18
  5. Step 5: Solve for x
    x = 504,251,442,435.18/812,361.42
  6. Step 6: Final answer
    x = 620,723.03

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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.