Home / 454,942.80-682,414.20-321,973.20

Finding the Fourth Proportional to 454,942.80, 682,414.20 and 321,973.20

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Solution

The fourth proportional to 454,942.80, 682,414.20 and 321,973.20 is: 482,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,942.80 : 682,414.20 = 321,973.20 : x
  2. Step 2: Convert to fraction form
    454,942.80/682,414.20 = 321,973.20/x
  3. Step 3: Cross multiply
    454,942.80x = 682,414.20 × 321,973.20
  4. Step 4: Simplify right side
    454,942.80x = 219,719,083,699.44
  5. Step 5: Solve for x
    x = 219,719,083,699.44/454,942.80
  6. Step 6: Final answer
    x = 482,959.80

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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.