Home / 330,517.06-495,006.66-321,425.62

Finding the Fourth Proportional to 330,517.06, 495,006.66 and 321,425.62

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Solution

The fourth proportional to 330,517.06, 495,006.66 and 321,425.62 is: 481,390.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,517.06 : 495,006.66 = 321,425.62 : x
  2. Step 2: Convert to fraction form
    330,517.06/495,006.66 = 321,425.62/x
  3. Step 3: Cross multiply
    330,517.06x = 495,006.66 × 321,425.62
  4. Step 4: Simplify right side
    330,517.06x = 159,107,822,594.63
  5. Step 5: Solve for x
    x = 159,107,822,594.63/330,517.06
  6. Step 6: Final answer
    x = 481,390.65

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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.