Home / 865,542.30-1,298,313.45-225,844.80

Finding the Fourth Proportional to 865,542.30, 1,298,313.45 and 225,844.80

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Solution

The fourth proportional to 865,542.30, 1,298,313.45 and 225,844.80 is: 338,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,542.30 : 1,298,313.45 = 225,844.80 : x
  2. Step 2: Convert to fraction form
    865,542.30/1,298,313.45 = 225,844.80/x
  3. Step 3: Cross multiply
    865,542.30x = 1,298,313.45 × 225,844.80
  4. Step 4: Simplify right side
    865,542.30x = 293,217,341,452.56
  5. Step 5: Solve for x
    x = 293,217,341,452.56/865,542.30
  6. Step 6: Final answer
    x = 338,767.20

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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.