Home / 667,648.97-1,001,558.33-212,077.68

Finding the Fourth Proportional to 667,648.97, 1,001,558.33 and 212,077.68

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Solution

The fourth proportional to 667,648.97, 1,001,558.33 and 212,077.68 is: 318,143.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,648.97 : 1,001,558.33 = 212,077.68 : x
  2. Step 2: Convert to fraction form
    667,648.97/1,001,558.33 = 212,077.68/x
  3. Step 3: Cross multiply
    667,648.97x = 1,001,558.33 × 212,077.68
  4. Step 4: Simplify right side
    667,648.97x = 212,408,167,541.27
  5. Step 5: Solve for x
    x = 212,408,167,541.27/667,648.97
  6. Step 6: Final answer
    x = 318,143.48

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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.