Home / 853,729.74-1,281,255.57-321,734.70

Finding the Fourth Proportional to 853,729.74, 1,281,255.57 and 321,734.70

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Solution

The fourth proportional to 853,729.74, 1,281,255.57 and 321,734.70 is: 482,851.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,729.74 : 1,281,255.57 = 321,734.70 : x
  2. Step 2: Convert to fraction form
    853,729.74/1,281,255.57 = 321,734.70/x
  3. Step 3: Cross multiply
    853,729.74x = 1,281,255.57 × 321,734.70
  4. Step 4: Simplify right side
    853,729.74x = 412,224,376,437.28
  5. Step 5: Solve for x
    x = 412,224,376,437.28/853,729.74
  6. Step 6: Final answer
    x = 482,851.14

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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.