Home / 792,738.22-1,189,064.90-280,367.86

Finding the Fourth Proportional to 792,738.22, 1,189,064.90 and 280,367.86

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Solution

The fourth proportional to 792,738.22, 1,189,064.90 and 280,367.86 is: 420,536.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,738.22 : 1,189,064.90 = 280,367.86 : x
  2. Step 2: Convert to fraction form
    792,738.22/1,189,064.90 = 280,367.86/x
  3. Step 3: Cross multiply
    792,738.22x = 1,189,064.90 × 280,367.86
  4. Step 4: Simplify right side
    792,738.22x = 333,375,581,414.11
  5. Step 5: Solve for x
    x = 333,375,581,414.11/792,738.22
  6. Step 6: Final answer
    x = 420,536.78

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1.5x scale

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.