Home / 680,169.90-1,019,088.45-443,390.70

Finding the Fourth Proportional to 680,169.90, 1,019,088.45 and 443,390.70

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Solution

The fourth proportional to 680,169.90, 1,019,088.45 and 443,390.70 is: 664,325.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,169.90 : 1,019,088.45 = 443,390.70 : x
  2. Step 2: Convert to fraction form
    680,169.90/1,019,088.45 = 443,390.70/x
  3. Step 3: Cross multiply
    680,169.90x = 1,019,088.45 × 443,390.70
  4. Step 4: Simplify right side
    680,169.90x = 451,854,341,207.42
  5. Step 5: Solve for x
    x = 451,854,341,207.42/680,169.90
  6. Step 6: Final answer
    x = 664,325.69

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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.