Home / 489,081.22-674,923.50-274,220.62

Finding the Fourth Proportional to 489,081.22, 674,923.50 and 274,220.62

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Solution

The fourth proportional to 489,081.22, 674,923.50 and 274,220.62 is: 378,419.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,081.22 : 674,923.50 = 274,220.62 : x
  2. Step 2: Convert to fraction form
    489,081.22/674,923.50 = 274,220.62/x
  3. Step 3: Cross multiply
    489,081.22x = 674,923.50 × 274,220.62
  4. Step 4: Simplify right side
    489,081.22x = 185,077,940,622.57
  5. Step 5: Solve for x
    x = 185,077,940,622.57/489,081.22
  6. Step 6: Final answer
    x = 378,419.64

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1.5x scale

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.