Home / 667,408.72-1,000,903.76-218,027.20

Finding the Fourth Proportional to 667,408.72, 1,000,903.76 and 218,027.20

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Solution

The fourth proportional to 667,408.72, 1,000,903.76 and 218,027.20 is: 326,972.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,408.72 : 1,000,903.76 = 218,027.20 : x
  2. Step 2: Convert to fraction form
    667,408.72/1,000,903.76 = 218,027.20/x
  3. Step 3: Cross multiply
    667,408.72x = 1,000,903.76 × 218,027.20
  4. Step 4: Simplify right side
    667,408.72x = 218,224,244,262.27
  5. Step 5: Solve for x
    x = 218,224,244,262.27/667,408.72
  6. Step 6: Final answer
    x = 326,972.42

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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.