Home / 770,472.10-1,155,920.82-321,404.08

Finding the Fourth Proportional to 770,472.10, 1,155,920.82 and 321,404.08

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Solution

The fourth proportional to 770,472.10, 1,155,920.82 and 321,404.08 is: 482,194.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,472.10 : 1,155,920.82 = 321,404.08 : x
  2. Step 2: Convert to fraction form
    770,472.10/1,155,920.82 = 321,404.08/x
  3. Step 3: Cross multiply
    770,472.10x = 1,155,920.82 × 321,404.08
  4. Step 4: Simplify right side
    770,472.10x = 371,517,667,704.95
  5. Step 5: Solve for x
    x = 371,517,667,704.95/770,472.10
  6. Step 6: Final answer
    x = 482,194.84

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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.