Home / 691,340.74-1,037,009.82-270,321.34

Finding the Fourth Proportional to 691,340.74, 1,037,009.82 and 270,321.34

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Solution

The fourth proportional to 691,340.74, 1,037,009.82 and 270,321.34 is: 405,481.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,340.74 : 1,037,009.82 = 270,321.34 : x
  2. Step 2: Convert to fraction form
    691,340.74/1,037,009.82 = 270,321.34/x
  3. Step 3: Cross multiply
    691,340.74x = 1,037,009.82 × 270,321.34
  4. Step 4: Simplify right side
    691,340.74x = 280,325,884,135.56
  5. Step 5: Solve for x
    x = 280,325,884,135.56/691,340.74
  6. Step 6: Final answer
    x = 405,481.51

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Double scale
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Similar ratio
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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.