Home / 676,788.58-1,015,408.97-221,400.58

Finding the Fourth Proportional to 676,788.58, 1,015,408.97 and 221,400.58

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Solution

The fourth proportional to 676,788.58, 1,015,408.97 and 221,400.58 is: 332,174.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,788.58 : 1,015,408.97 = 221,400.58 : x
  2. Step 2: Convert to fraction form
    676,788.58/1,015,408.97 = 221,400.58/x
  3. Step 3: Cross multiply
    676,788.58x = 1,015,408.97 × 221,400.58
  4. Step 4: Simplify right side
    676,788.58x = 224,812,131,249.68
  5. Step 5: Solve for x
    x = 224,812,131,249.68/676,788.58
  6. Step 6: Final answer
    x = 332,174.83

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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.