Home / 680,170.40-1,019,089.20-443,391.20

Finding the Fourth Proportional to 680,170.40, 1,019,089.20 and 443,391.20

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Solution

The fourth proportional to 680,170.40, 1,019,089.20 and 443,391.20 is: 664,326.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,170.40 : 1,019,089.20 = 443,391.20 : x
  2. Step 2: Convert to fraction form
    680,170.40/1,019,089.20 = 443,391.20/x
  3. Step 3: Cross multiply
    680,170.40x = 1,019,089.20 × 443,391.20
  4. Step 4: Simplify right side
    680,170.40x = 451,855,183,295.04
  5. Step 5: Solve for x
    x = 451,855,183,295.04/680,170.40
  6. Step 6: Final answer
    x = 664,326.44

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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.