Home / 783,198.92-1,080,778.02-443,669.96

Finding the Fourth Proportional to 783,198.92, 1,080,778.02 and 443,669.96

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Solution

The fourth proportional to 783,198.92, 1,080,778.02 and 443,669.96 is: 612,243.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,198.92 : 1,080,778.02 = 443,669.96 : x
  2. Step 2: Convert to fraction form
    783,198.92/1,080,778.02 = 443,669.96/x
  3. Step 3: Cross multiply
    783,198.92x = 1,080,778.02 × 443,669.96
  4. Step 4: Simplify right side
    783,198.92x = 479,508,740,902.28
  5. Step 5: Solve for x
    x = 479,508,740,902.28/783,198.92
  6. Step 6: Final answer
    x = 612,243.87

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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.