Home / 422,329.11-632,021.01-345,540.19

Finding the Fourth Proportional to 422,329.11, 632,021.01 and 345,540.19

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Solution

The fourth proportional to 422,329.11, 632,021.01 and 345,540.19 is: 517,105.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,329.11 : 632,021.01 = 345,540.19 : x
  2. Step 2: Convert to fraction form
    422,329.11/632,021.01 = 345,540.19/x
  3. Step 3: Cross multiply
    422,329.11x = 632,021.01 × 345,540.19
  4. Step 4: Simplify right side
    422,329.11x = 218,388,659,879.39
  5. Step 5: Solve for x
    x = 218,388,659,879.39/422,329.11
  6. Step 6: Final answer
    x = 517,105.39

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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.