Home / 694,201.20-1,040,135.40-338,449.20

Finding the Fourth Proportional to 694,201.20, 1,040,135.40 and 338,449.20

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Solution

The fourth proportional to 694,201.20, 1,040,135.40 and 338,449.20 is: 507,105.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,201.20 : 1,040,135.40 = 338,449.20 : x
  2. Step 2: Convert to fraction form
    694,201.20/1,040,135.40 = 338,449.20/x
  3. Step 3: Cross multiply
    694,201.20x = 1,040,135.40 × 338,449.20
  4. Step 4: Simplify right side
    694,201.20x = 352,032,994,021.68
  5. Step 5: Solve for x
    x = 352,032,994,021.68/694,201.20
  6. Step 6: Final answer
    x = 507,105.14

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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.