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Finding the Fourth Proportional to 489,757.44, 675,813.38 and 274,921.14

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Solution

The fourth proportional to 489,757.44, 675,813.38 and 274,921.14 is: 379,362.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,757.44 : 675,813.38 = 274,921.14 : x
  2. Step 2: Convert to fraction form
    489,757.44/675,813.38 = 274,921.14/x
  3. Step 3: Cross multiply
    489,757.44x = 675,813.38 × 274,921.14
  4. Step 4: Simplify right side
    489,757.44x = 185,795,384,856.85
  5. Step 5: Solve for x
    x = 185,795,384,856.85/489,757.44
  6. Step 6: Final answer
    x = 379,362.05

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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.