Home / 810,010.70-1,215,016.05-798,200.90

Finding the Fourth Proportional to 810,010.70, 1,215,016.05 and 798,200.90

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Solution

The fourth proportional to 810,010.70, 1,215,016.05 and 798,200.90 is: 1,197,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,010.70 : 1,215,016.05 = 798,200.90 : x
  2. Step 2: Convert to fraction form
    810,010.70/1,215,016.05 = 798,200.90/x
  3. Step 3: Cross multiply
    810,010.70x = 1,215,016.05 × 798,200.90
  4. Step 4: Simplify right side
    810,010.70x = 969,826,904,624.45
  5. Step 5: Solve for x
    x = 969,826,904,624.45/810,010.70
  6. Step 6: Final answer
    x = 1,197,301.35

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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.