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Finding the Fourth Proportional to 542,808.80, 814,213.20 and 262,872.80

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Solution

The fourth proportional to 542,808.80, 814,213.20 and 262,872.80 is: 394,309.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,808.80 : 814,213.20 = 262,872.80 : x
  2. Step 2: Convert to fraction form
    542,808.80/814,213.20 = 262,872.80/x
  3. Step 3: Cross multiply
    542,808.80x = 814,213.20 × 262,872.80
  4. Step 4: Simplify right side
    542,808.80x = 214,034,503,680.96
  5. Step 5: Solve for x
    x = 214,034,503,680.96/542,808.80
  6. Step 6: Final answer
    x = 394,309.20

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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.