Home / 439,898.60-659,716.25-229,421.72

Finding the Fourth Proportional to 439,898.60, 659,716.25 and 229,421.72

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Solution

The fourth proportional to 439,898.60, 659,716.25 and 229,421.72 is: 344,063.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,898.60 : 659,716.25 = 229,421.72 : x
  2. Step 2: Convert to fraction form
    439,898.60/659,716.25 = 229,421.72/x
  3. Step 3: Cross multiply
    439,898.60x = 659,716.25 × 229,421.72
  4. Step 4: Simplify right side
    439,898.60x = 151,353,236,786.95
  5. Step 5: Solve for x
    x = 151,353,236,786.95/439,898.60
  6. Step 6: Final answer
    x = 344,063.92

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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.