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Finding the Fourth Proportional to 489,377.43, 675,339.75 and 271,619.46

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Solution

The fourth proportional to 489,377.43, 675,339.75 and 271,619.46 is: 374,834.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,377.43 : 675,339.75 = 271,619.46 : x
  2. Step 2: Convert to fraction form
    489,377.43/675,339.75 = 271,619.46/x
  3. Step 3: Cross multiply
    489,377.43x = 675,339.75 × 271,619.46
  4. Step 4: Simplify right side
    489,377.43x = 183,435,418,211.54
  5. Step 5: Solve for x
    x = 183,435,418,211.54/489,377.43
  6. Step 6: Final answer
    x = 374,834.24

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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.