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Finding the Fourth Proportional to 489,348.11, 675,299.43 and 271,590.19

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Solution

The fourth proportional to 489,348.11, 675,299.43 and 271,590.19 is: 374,793.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,348.11 : 675,299.43 = 271,590.19 : x
  2. Step 2: Convert to fraction form
    489,348.11/675,299.43 = 271,590.19/x
  3. Step 3: Cross multiply
    489,348.11x = 675,299.43 × 271,590.19
  4. Step 4: Simplify right side
    489,348.11x = 183,404,700,711.62
  5. Step 5: Solve for x
    x = 183,404,700,711.62/489,348.11
  6. Step 6: Final answer
    x = 374,793.93

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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.