Home / 326-699

Finding the Third Proportional to 326 and 699

Calculator

Solution

The third proportional to 326 and 699 is: 1,498.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    326 : 699 = 699 : x
  2. Step 2: Convert to fraction form
    326/699 = 699/x
  3. Step 3: Cross multiply
    326x = 699 × 699
  4. Step 4: Simplify right side
    326x = 488,601
  5. Step 5: Solve for x
    x = 488,601/326
  6. Step 6: Final answer
    x = 1,498.78

Related Problems

Find third proportional to 163 and 349.50
Half scale
Find third proportional to 652 and 1,398
Double scale
Find third proportional to 328 and 703
Similar ratio
Find third proportional to 489 and 1,048.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.