Home / 920,194.75-1,380,417.88-321,067.92

Finding the Fourth Proportional to 920,194.75, 1,380,417.88 and 321,067.92

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Solution

The fourth proportional to 920,194.75, 1,380,417.88 and 321,067.92 is: 481,645.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,194.75 : 1,380,417.88 = 321,067.92 : x
  2. Step 2: Convert to fraction form
    920,194.75/1,380,417.88 = 321,067.92/x
  3. Step 3: Cross multiply
    920,194.75x = 1,380,417.88 × 321,067.92
  4. Step 4: Simplify right side
    920,194.75x = 443,207,897,462.41
  5. Step 5: Solve for x
    x = 443,207,897,462.41/920,194.75
  6. Step 6: Final answer
    x = 481,645.76

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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.