Home / 721,028.41-1,081,544.94-271,628.60

Finding the Fourth Proportional to 721,028.41, 1,081,544.94 and 271,628.60

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Solution

The fourth proportional to 721,028.41, 1,081,544.94 and 271,628.60 is: 407,443.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,028.41 : 1,081,544.94 = 271,628.60 : x
  2. Step 2: Convert to fraction form
    721,028.41/1,081,544.94 = 271,628.60/x
  3. Step 3: Cross multiply
    721,028.41x = 1,081,544.94 × 271,628.60
  4. Step 4: Simplify right side
    721,028.41x = 293,778,532,481.56
  5. Step 5: Solve for x
    x = 293,778,532,481.56/721,028.41
  6. Step 6: Final answer
    x = 407,443.77

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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.