Home / 724,286.80-1,085,998.20-444,005.20

Finding the Fourth Proportional to 724,286.80, 1,085,998.20 and 444,005.20

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Solution

The fourth proportional to 724,286.80, 1,085,998.20 and 444,005.20 is: 665,742.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,286.80 : 1,085,998.20 = 444,005.20 : x
  2. Step 2: Convert to fraction form
    724,286.80/1,085,998.20 = 444,005.20/x
  3. Step 3: Cross multiply
    724,286.80x = 1,085,998.20 × 444,005.20
  4. Step 4: Simplify right side
    724,286.80x = 482,188,847,990.64
  5. Step 5: Solve for x
    x = 482,188,847,990.64/724,286.80
  6. Step 6: Final answer
    x = 665,742.97

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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.