Home / 868,486.43-1,302,680.23-261,261.83

Finding the Fourth Proportional to 868,486.43, 1,302,680.23 and 261,261.83

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Solution

The fourth proportional to 868,486.43, 1,302,680.23 and 261,261.83 is: 391,877.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,486.43 : 1,302,680.23 = 261,261.83 : x
  2. Step 2: Convert to fraction form
    868,486.43/1,302,680.23 = 261,261.83/x
  3. Step 3: Cross multiply
    868,486.43x = 1,302,680.23 × 261,261.83
  4. Step 4: Simplify right side
    868,486.43x = 340,340,620,794.62
  5. Step 5: Solve for x
    x = 340,340,620,794.62/868,486.43
  6. Step 6: Final answer
    x = 391,877.88

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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.