Home / 861,861.18-1,292,791.78-270,885.18

Finding the Fourth Proportional to 861,861.18, 1,292,791.78 and 270,885.18

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Solution

The fourth proportional to 861,861.18, 1,292,791.78 and 270,885.18 is: 406,327.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,861.18 : 1,292,791.78 = 270,885.18 : x
  2. Step 2: Convert to fraction form
    861,861.18/1,292,791.78 = 270,885.18/x
  3. Step 3: Cross multiply
    861,861.18x = 1,292,791.78 × 270,885.18
  4. Step 4: Simplify right side
    861,861.18x = 350,198,134,027.82
  5. Step 5: Solve for x
    x = 350,198,134,027.82/861,861.18
  6. Step 6: Final answer
    x = 406,327.77

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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.