Home / 731,120.20-1,096,680.30-518,543.80

Finding the Fourth Proportional to 731,120.20, 1,096,680.30 and 518,543.80

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Solution

The fourth proportional to 731,120.20, 1,096,680.30 and 518,543.80 is: 777,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,120.20 : 1,096,680.30 = 518,543.80 : x
  2. Step 2: Convert to fraction form
    731,120.20/1,096,680.30 = 518,543.80/x
  3. Step 3: Cross multiply
    731,120.20x = 1,096,680.30 × 518,543.80
  4. Step 4: Simplify right side
    731,120.20x = 568,676,770,147.14
  5. Step 5: Solve for x
    x = 568,676,770,147.14/731,120.20
  6. Step 6: Final answer
    x = 777,815.70

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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.