Home / 731,446.20-1,097,169.30-642,872.70

Finding the Fourth Proportional to 731,446.20, 1,097,169.30 and 642,872.70

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Solution

The fourth proportional to 731,446.20, 1,097,169.30 and 642,872.70 is: 964,309.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,446.20 : 1,097,169.30 = 642,872.70 : x
  2. Step 2: Convert to fraction form
    731,446.20/1,097,169.30 = 642,872.70/x
  3. Step 3: Cross multiply
    731,446.20x = 1,097,169.30 × 642,872.70
  4. Step 4: Simplify right side
    731,446.20x = 705,340,190,248.11
  5. Step 5: Solve for x
    x = 705,340,190,248.11/731,446.20
  6. Step 6: Final answer
    x = 964,309.05

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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.