Home / 489,016.12-674,874.72-274,170.10

Finding the Fourth Proportional to 489,016.12, 674,874.72 and 274,170.10

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Solution

The fourth proportional to 489,016.12, 674,874.72 and 274,170.10 is: 378,372.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,016.12 : 674,874.72 = 274,170.10 : x
  2. Step 2: Convert to fraction form
    489,016.12/674,874.72 = 274,170.10/x
  3. Step 3: Cross multiply
    489,016.12x = 674,874.72 × 274,170.10
  4. Step 4: Simplify right side
    489,016.12x = 185,030,469,469.87
  5. Step 5: Solve for x
    x = 185,030,469,469.87/489,016.12
  6. Step 6: Final answer
    x = 378,372.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.