Home / 489,865.95-675,968.36-274,956.75

Finding the Fourth Proportional to 489,865.95, 675,968.36 and 274,956.75

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Solution

The fourth proportional to 489,865.95, 675,968.36 and 274,956.75 is: 379,414.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,865.95 : 675,968.36 = 274,956.75 : x
  2. Step 2: Convert to fraction form
    489,865.95/675,968.36 = 274,956.75/x
  3. Step 3: Cross multiply
    489,865.95x = 675,968.36 × 274,956.75
  4. Step 4: Simplify right side
    489,865.95x = 185,862,061,993.65
  5. Step 5: Solve for x
    x = 185,862,061,993.65/489,865.95
  6. Step 6: Final answer
    x = 379,414.13

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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.