Home / 842,440.46-1,264,781.72-443,361.49

Finding the Fourth Proportional to 842,440.46, 1,264,781.72 and 443,361.49

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Solution

The fourth proportional to 842,440.46, 1,264,781.72 and 443,361.49 is: 665,632.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,440.46 : 1,264,781.72 = 443,361.49 : x
  2. Step 2: Convert to fraction form
    842,440.46/1,264,781.72 = 443,361.49/x
  3. Step 3: Cross multiply
    842,440.46x = 1,264,781.72 × 443,361.49
  4. Step 4: Simplify right side
    842,440.46x = 560,755,505,850.41
  5. Step 5: Solve for x
    x = 560,755,505,850.41/842,440.46
  6. Step 6: Final answer
    x = 665,632.21

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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.