Home / 490,786.60-736,189.13-153,819.79

Finding the Fourth Proportional to 490,786.60, 736,189.13 and 153,819.79

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Solution

The fourth proportional to 490,786.60, 736,189.13 and 153,819.79 is: 230,732.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,786.60 : 736,189.13 = 153,819.79 : x
  2. Step 2: Convert to fraction form
    490,786.60/736,189.13 = 153,819.79/x
  3. Step 3: Cross multiply
    490,786.60x = 736,189.13 × 153,819.79
  4. Step 4: Simplify right side
    490,786.60x = 113,240,454,767.31
  5. Step 5: Solve for x
    x = 113,240,454,767.31/490,786.60
  6. Step 6: Final answer
    x = 230,732.57

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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.