Home / 732,080.20-1,098,120.30-643,506.70

Finding the Fourth Proportional to 732,080.20, 1,098,120.30 and 643,506.70

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Solution

The fourth proportional to 732,080.20, 1,098,120.30 and 643,506.70 is: 965,260.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    732,080.20 : 1,098,120.30 = 643,506.70 : x
  2. Step 2: Convert to fraction form
    732,080.20/1,098,120.30 = 643,506.70/x
  3. Step 3: Cross multiply
    732,080.20x = 1,098,120.30 × 643,506.70
  4. Step 4: Simplify right side
    732,080.20x = 706,647,770,456.01
  5. Step 5: Solve for x
    x = 706,647,770,456.01/732,080.20
  6. Step 6: Final answer
    x = 965,260.05

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Double scale
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Similar ratio
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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.