Home / 905,149.13-1,357,723.69-231,231.92

Finding the Fourth Proportional to 905,149.13, 1,357,723.69 and 231,231.92

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Solution

The fourth proportional to 905,149.13, 1,357,723.69 and 231,231.92 is: 346,847.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,149.13 : 1,357,723.69 = 231,231.92 : x
  2. Step 2: Convert to fraction form
    905,149.13/1,357,723.69 = 231,231.92/x
  3. Step 3: Cross multiply
    905,149.13x = 1,357,723.69 × 231,231.92
  4. Step 4: Simplify right side
    905,149.13x = 313,949,048,301.49
  5. Step 5: Solve for x
    x = 313,949,048,301.49/905,149.13
  6. Step 6: Final answer
    x = 346,847.87

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Double scale
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Similar ratio
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1.5x scale

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.