Home / 324,286.89-486,441.27-87,631.62

Finding the Fourth Proportional to 324,286.89, 486,441.27 and 87,631.62

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Solution

The fourth proportional to 324,286.89, 486,441.27 and 87,631.62 is: 131,450.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,286.89 : 486,441.27 = 87,631.62 : x
  2. Step 2: Convert to fraction form
    324,286.89/486,441.27 = 87,631.62/x
  3. Step 3: Cross multiply
    324,286.89x = 486,441.27 × 87,631.62
  4. Step 4: Simplify right side
    324,286.89x = 42,627,636,524.96
  5. Step 5: Solve for x
    x = 42,627,636,524.96/324,286.89
  6. Step 6: Final answer
    x = 131,450.38

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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.