Home / 489,834.28-675,970.96-274,974.76

Finding the Fourth Proportional to 489,834.28, 675,970.96 and 274,974.76

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Solution

The fourth proportional to 489,834.28, 675,970.96 and 274,974.76 is: 379,464.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,834.28 : 675,970.96 = 274,974.76 : x
  2. Step 2: Convert to fraction form
    489,834.28/675,970.96 = 274,974.76/x
  3. Step 3: Cross multiply
    489,834.28x = 675,970.96 × 274,974.76
  4. Step 4: Simplify right side
    489,834.28x = 185,874,952,492.97
  5. Step 5: Solve for x
    x = 185,874,952,492.97/489,834.28
  6. Step 6: Final answer
    x = 379,464.97

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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.