Home / 490,819.60-736,236.20-323,411.60

Finding the Fourth Proportional to 490,819.60, 736,236.20 and 323,411.60

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Solution

The fourth proportional to 490,819.60, 736,236.20 and 323,411.60 is: 485,121.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,819.60 : 736,236.20 = 323,411.60 : x
  2. Step 2: Convert to fraction form
    490,819.60/736,236.20 = 323,411.60/x
  3. Step 3: Cross multiply
    490,819.60x = 736,236.20 × 323,411.60
  4. Step 4: Simplify right side
    490,819.60x = 238,107,327,419.92
  5. Step 5: Solve for x
    x = 238,107,327,419.92/490,819.60
  6. Step 6: Final answer
    x = 485,121.88

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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.