Home / 719-779

Finding the Third Proportional to 719 and 779

Calculator

Solution

The third proportional to 719 and 779 is: 844.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    719 : 779 = 779 : x
  2. Step 2: Convert to fraction form
    719/779 = 779/x
  3. Step 3: Cross multiply
    719x = 779 × 779
  4. Step 4: Simplify right side
    719x = 606,841
  5. Step 5: Solve for x
    x = 606,841/719
  6. Step 6: Final answer
    x = 844.01

Related Problems

Find third proportional to 359.50 and 389.50
Half scale
Find third proportional to 1,438 and 1,558
Double scale
Find third proportional to 721 and 781
Similar ratio
Find third proportional to 1,078.50 and 1,168.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.