Home / 756,716.89-1,135,071.23-324,370.68

Finding the Fourth Proportional to 756,716.89, 1,135,071.23 and 324,370.68

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Solution

The fourth proportional to 756,716.89, 1,135,071.23 and 324,370.68 is: 486,554.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,716.89 : 1,135,071.23 = 324,370.68 : x
  2. Step 2: Convert to fraction form
    756,716.89/1,135,071.23 = 324,370.68/x
  3. Step 3: Cross multiply
    756,716.89x = 1,135,071.23 × 324,370.68
  4. Step 4: Simplify right side
    756,716.89x = 368,183,826,723.54
  5. Step 5: Solve for x
    x = 368,183,826,723.54/756,716.89
  6. Step 6: Final answer
    x = 486,554.26

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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.