Home / 865,677.79-1,298,517.01-225,979.73

Finding the Fourth Proportional to 865,677.79, 1,298,517.01 and 225,979.73

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Solution

The fourth proportional to 865,677.79, 1,298,517.01 and 225,979.73 is: 338,969.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,677.79 : 1,298,517.01 = 225,979.73 : x
  2. Step 2: Convert to fraction form
    865,677.79/1,298,517.01 = 225,979.73/x
  3. Step 3: Cross multiply
    865,677.79x = 1,298,517.01 × 225,979.73
  4. Step 4: Simplify right side
    865,677.79x = 293,438,523,320.21
  5. Step 5: Solve for x
    x = 293,438,523,320.21/865,677.79
  6. Step 6: Final answer
    x = 338,969.68

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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.