Home / 770,714.22-1,155,276.72-321,696.39

Finding the Fourth Proportional to 770,714.22, 1,155,276.72 and 321,696.39

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Solution

The fourth proportional to 770,714.22, 1,155,276.72 and 321,696.39 is: 482,212.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,714.22 : 1,155,276.72 = 321,696.39 : x
  2. Step 2: Convert to fraction form
    770,714.22/1,155,276.72 = 321,696.39/x
  3. Step 3: Cross multiply
    770,714.22x = 1,155,276.72 × 321,696.39
  4. Step 4: Simplify right side
    770,714.22x = 371,648,350,275.04
  5. Step 5: Solve for x
    x = 371,648,350,275.04/770,714.22
  6. Step 6: Final answer
    x = 482,212.91

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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.