Home / 311,707-681,734

Finding the Third Proportional to 311,707 and 681,734

Calculator

Solution

The third proportional to 311,707 and 681,734 is: 1,491,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,707 : 681,734 = 681,734 : x
  2. Step 2: Convert to fraction form
    311,707/681,734 = 681,734/x
  3. Step 3: Cross multiply
    311,707x = 681,734 × 681,734
  4. Step 4: Simplify right side
    311,707x = 464,761,246,756
  5. Step 5: Solve for x
    x = 464,761,246,756/311,707
  6. Step 6: Final answer
    x = 1,491,019.60

Related Problems

Find third proportional to 155,853.50 and 340,867
Half scale
Find third proportional to 623,414 and 1,363,468
Double scale
Find third proportional to 311,709 and 681,738
Similar ratio
Find third proportional to 467,560.50 and 1,022,601
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.