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Finding the Fourth Proportional to 489,849.42, 675,954.88 and 274,947.97

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Solution

The fourth proportional to 489,849.42, 675,954.88 and 274,947.97 is: 379,407.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,849.42 : 675,954.88 = 274,947.97 : x
  2. Step 2: Convert to fraction form
    489,849.42/675,954.88 = 274,947.97/x
  3. Step 3: Cross multiply
    489,849.42x = 675,954.88 × 274,947.97
  4. Step 4: Simplify right side
    489,849.42x = 185,852,422,890.98
  5. Step 5: Solve for x
    x = 185,852,422,890.98/489,849.42
  6. Step 6: Final answer
    x = 379,407.25

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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.