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Finding the Fourth Proportional to 489,761.98, 675,888.44 and 271,974.30

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Solution

The fourth proportional to 489,761.98, 675,888.44 and 271,974.30 is: 375,333.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,761.98 : 675,888.44 = 271,974.30 : x
  2. Step 2: Convert to fraction form
    489,761.98/675,888.44 = 271,974.30/x
  3. Step 3: Cross multiply
    489,761.98x = 675,888.44 × 271,974.30
  4. Step 4: Simplify right side
    489,761.98x = 183,824,285,347.09
  5. Step 5: Solve for x
    x = 183,824,285,347.09/489,761.98
  6. Step 6: Final answer
    x = 375,333.92

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1.5x scale

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.