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Finding the Fourth Proportional to 542,989.70, 814,873.35 and 227,672.90

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Solution

The fourth proportional to 542,989.70, 814,873.35 and 227,672.90 is: 341,672.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,989.70 : 814,873.35 = 227,672.90 : x
  2. Step 2: Convert to fraction form
    542,989.70/814,873.35 = 227,672.90/x
  3. Step 3: Cross multiply
    542,989.70x = 814,873.35 × 227,672.90
  4. Step 4: Simplify right side
    542,989.70x = 185,524,578,727.22
  5. Step 5: Solve for x
    x = 185,524,578,727.22/542,989.70
  6. Step 6: Final answer
    x = 341,672.37

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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.