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Finding the Fourth Proportional to 542,996.40, 814,494.60 and 342,667.20

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Solution

The fourth proportional to 542,996.40, 814,494.60 and 342,667.20 is: 514,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,996.40 : 814,494.60 = 342,667.20 : x
  2. Step 2: Convert to fraction form
    542,996.40/814,494.60 = 342,667.20/x
  3. Step 3: Cross multiply
    542,996.40x = 814,494.60 × 342,667.20
  4. Step 4: Simplify right side
    542,996.40x = 279,100,583,997.12
  5. Step 5: Solve for x
    x = 279,100,583,997.12/542,996.40
  6. Step 6: Final answer
    x = 514,000.80

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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.