Home / 641,439.12-962,340.33-321,204.41

Finding the Fourth Proportional to 641,439.12, 962,340.33 and 321,204.41

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Solution

The fourth proportional to 641,439.12, 962,340.33 and 321,204.41 is: 481,897.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,439.12 : 962,340.33 = 321,204.41 : x
  2. Step 2: Convert to fraction form
    641,439.12/962,340.33 = 321,204.41/x
  3. Step 3: Cross multiply
    641,439.12x = 962,340.33 × 321,204.41
  4. Step 4: Simplify right side
    641,439.12x = 309,107,957,916.86
  5. Step 5: Solve for x
    x = 309,107,957,916.86/641,439.12
  6. Step 6: Final answer
    x = 481,897.58

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Double scale
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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.