Home / 442,982.20-664,473.30-324,009.40

Finding the Fourth Proportional to 442,982.20, 664,473.30 and 324,009.40

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Solution

The fourth proportional to 442,982.20, 664,473.30 and 324,009.40 is: 486,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,982.20 : 664,473.30 = 324,009.40 : x
  2. Step 2: Convert to fraction form
    442,982.20/664,473.30 = 324,009.40/x
  3. Step 3: Cross multiply
    442,982.20x = 664,473.30 × 324,009.40
  4. Step 4: Simplify right side
    442,982.20x = 215,295,595,249.02
  5. Step 5: Solve for x
    x = 215,295,595,249.02/442,982.20
  6. Step 6: Final answer
    x = 486,014.10

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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.