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Finding the Fourth Proportional to 489,754.22, 675,854.08 and 274,890.38

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Solution

The fourth proportional to 489,754.22, 675,854.08 and 274,890.38 is: 379,344.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,754.22 : 675,854.08 = 274,890.38 : x
  2. Step 2: Convert to fraction form
    489,754.22/675,854.08 = 274,890.38/x
  3. Step 3: Cross multiply
    489,754.22x = 675,854.08 × 274,890.38
  4. Step 4: Simplify right side
    489,754.22x = 185,785,780,809.25
  5. Step 5: Solve for x
    x = 185,785,780,809.25/489,754.22
  6. Step 6: Final answer
    x = 379,344.93

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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.