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Finding the Fourth Proportional to 489,480.57, 675,523.90 and 271,709.74

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Solution

The fourth proportional to 489,480.57, 675,523.90 and 271,709.74 is: 374,982.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,480.57 : 675,523.90 = 271,709.74 : x
  2. Step 2: Convert to fraction form
    489,480.57/675,523.90 = 271,709.74/x
  3. Step 3: Cross multiply
    489,480.57x = 675,523.90 × 271,709.74
  4. Step 4: Simplify right side
    489,480.57x = 183,546,424,416.83
  5. Step 5: Solve for x
    x = 183,546,424,416.83/489,480.57
  6. Step 6: Final answer
    x = 374,982.04

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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.