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Finding the Fourth Proportional to 489,755.39, 675,825.36 and 274,853.93

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Solution

The fourth proportional to 489,755.39, 675,825.36 and 274,853.93 is: 379,277.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,755.39 : 675,825.36 = 274,853.93 : x
  2. Step 2: Convert to fraction form
    489,755.39/675,825.36 = 274,853.93/x
  3. Step 3: Cross multiply
    489,755.39x = 675,825.36 × 274,853.93
  4. Step 4: Simplify right side
    489,755.39x = 185,753,252,810.54
  5. Step 5: Solve for x
    x = 185,753,252,810.54/489,755.39
  6. Step 6: Final answer
    x = 379,277.61

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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.