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Finding the Fourth Proportional to 326,635.92, 489,909.24 and 89,944.56

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Solution

The fourth proportional to 326,635.92, 489,909.24 and 89,944.56 is: 134,904.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,635.92 : 489,909.24 = 89,944.56 : x
  2. Step 2: Convert to fraction form
    326,635.92/489,909.24 = 89,944.56/x
  3. Step 3: Cross multiply
    326,635.92x = 489,909.24 × 89,944.56
  4. Step 4: Simplify right side
    326,635.92x = 44,064,671,031.73
  5. Step 5: Solve for x
    x = 44,064,671,031.73/326,635.92
  6. Step 6: Final answer
    x = 134,904.55

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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.