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Finding the Fourth Proportional to 489,580.27, 675,633.05 and 274,737.49

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Solution

The fourth proportional to 489,580.27, 675,633.05 and 274,737.49 is: 379,144.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,580.27 : 675,633.05 = 274,737.49 : x
  2. Step 2: Convert to fraction form
    489,580.27/675,633.05 = 274,737.49/x
  3. Step 3: Cross multiply
    489,580.27x = 675,633.05 × 274,737.49
  4. Step 4: Simplify right side
    489,580.27x = 185,621,726,285.54
  5. Step 5: Solve for x
    x = 185,621,726,285.54/489,580.27
  6. Step 6: Final answer
    x = 379,144.62

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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.