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Finding the Fourth Proportional to 887,620.72, 1,331,299.86 and 326,524

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Solution

The fourth proportional to 887,620.72, 1,331,299.86 and 326,524 is: 489,737.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,620.72 : 1,331,299.86 = 326,524 : x
  2. Step 2: Convert to fraction form
    887,620.72/1,331,299.86 = 326,524/x
  3. Step 3: Cross multiply
    887,620.72x = 1,331,299.86 × 326,524
  4. Step 4: Simplify right side
    887,620.72x = 434,701,355,486.64
  5. Step 5: Solve for x
    x = 434,701,355,486.64/887,620.72
  6. Step 6: Final answer
    x = 489,737.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.