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Finding the Fourth Proportional to 489,450.11, 675,441.40 and 271,658.88

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Solution

The fourth proportional to 489,450.11, 675,441.40 and 271,658.88 is: 374,889.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,450.11 : 675,441.40 = 271,658.88 : x
  2. Step 2: Convert to fraction form
    489,450.11/675,441.40 = 271,658.88/x
  3. Step 3: Cross multiply
    489,450.11x = 675,441.40 × 271,658.88
  4. Step 4: Simplify right side
    489,450.11x = 183,489,651,210.33
  5. Step 5: Solve for x
    x = 183,489,651,210.33/489,450.11
  6. Step 6: Final answer
    x = 374,889.39

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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.