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Finding the Fourth Proportional to 439,902.32, 659,902.68 and 124,383.84

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Solution

The fourth proportional to 439,902.32, 659,902.68 and 124,383.84 is: 186,589.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,902.32 : 659,902.68 = 124,383.84 : x
  2. Step 2: Convert to fraction form
    439,902.32/659,902.68 = 124,383.84/x
  3. Step 3: Cross multiply
    439,902.32x = 659,902.68 × 124,383.84
  4. Step 4: Simplify right side
    439,902.32x = 82,081,229,364.69
  5. Step 5: Solve for x
    x = 82,081,229,364.69/439,902.32
  6. Step 6: Final answer
    x = 186,589.67

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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.