Home / 1,231,781.22-1,699,773.42-680,472.54

Finding the Fourth Proportional to 1,231,781.22, 1,699,773.42 and 680,472.54

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Solution

The fourth proportional to 1,231,781.22, 1,699,773.42 and 680,472.54 is: 939,005.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,781.22 : 1,699,773.42 = 680,472.54 : x
  2. Step 2: Convert to fraction form
    1,231,781.22/1,699,773.42 = 680,472.54/x
  3. Step 3: Cross multiply
    1,231,781.22x = 1,699,773.42 × 680,472.54
  4. Step 4: Simplify right side
    1,231,781.22x = 1,156,649,136,531.89
  5. Step 5: Solve for x
    x = 1,156,649,136,531.89/1,231,781.22
  6. Step 6: Final answer
    x = 939,005.33

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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.