Home / 393.38-829.69

Finding the Third Proportional to 393.38 and 829.69

Calculator

Solution

The third proportional to 393.38 and 829.69 is: 1,749.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    393.38 : 829.69 = 829.69 : x
  2. Step 2: Convert to fraction form
    393.38/829.69 = 829.69/x
  3. Step 3: Cross multiply
    393.38x = 829.69 × 829.69
  4. Step 4: Simplify right side
    393.38x = 688,381.35
  5. Step 5: Solve for x
    x = 688,381.35/393.38
  6. Step 6: Final answer
    x = 1,749.94

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.