Home / 874,096.39-1,311,142.68-275,109.91

Finding the Fourth Proportional to 874,096.39, 1,311,142.68 and 275,109.91

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Solution

The fourth proportional to 874,096.39, 1,311,142.68 and 275,109.91 is: 412,664.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,096.39 : 1,311,142.68 = 275,109.91 : x
  2. Step 2: Convert to fraction form
    874,096.39/1,311,142.68 = 275,109.91/x
  3. Step 3: Cross multiply
    874,096.39x = 1,311,142.68 × 275,109.91
  4. Step 4: Simplify right side
    874,096.39x = 360,708,344,691.96
  5. Step 5: Solve for x
    x = 360,708,344,691.96/874,096.39
  6. Step 6: Final answer
    x = 412,664.27

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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.