Home / 725,249.96-1,000,822.38-398,562.20

Finding the Fourth Proportional to 725,249.96, 1,000,822.38 and 398,562.20

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Solution

The fourth proportional to 725,249.96, 1,000,822.38 and 398,562.20 is: 550,003.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,249.96 : 1,000,822.38 = 398,562.20 : x
  2. Step 2: Convert to fraction form
    725,249.96/1,000,822.38 = 398,562.20/x
  3. Step 3: Cross multiply
    725,249.96x = 1,000,822.38 × 398,562.20
  4. Step 4: Simplify right side
    725,249.96x = 398,889,969,582.04
  5. Step 5: Solve for x
    x = 398,889,969,582.04/725,249.96
  6. Step 6: Final answer
    x = 550,003.44

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.