Home / 489,828.28-675,962.70-274,968.76

Finding the Fourth Proportional to 489,828.28, 675,962.70 and 274,968.76

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Solution

The fourth proportional to 489,828.28, 675,962.70 and 274,968.76 is: 379,456.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,828.28 : 675,962.70 = 274,968.76 : x
  2. Step 2: Convert to fraction form
    489,828.28/675,962.70 = 274,968.76/x
  3. Step 3: Cross multiply
    489,828.28x = 675,962.70 × 274,968.76
  4. Step 4: Simplify right side
    489,828.28x = 185,868,625,425.25
  5. Step 5: Solve for x
    x = 185,868,625,425.25/489,828.28
  6. Step 6: Final answer
    x = 379,456.71

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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.