Home / 676-991.75

Finding the Third Proportional to 676 and 991.75

Calculator

Solution

The third proportional to 676 and 991.75 is: 1,454.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    676 : 991.75 = 991.75 : x
  2. Step 2: Convert to fraction form
    676/991.75 = 991.75/x
  3. Step 3: Cross multiply
    676x = 991.75 × 991.75
  4. Step 4: Simplify right side
    676x = 983,568.06
  5. Step 5: Solve for x
    x = 983,568.06/676
  6. Step 6: Final answer
    x = 1,454.98

Related Problems

Find third proportional to 338 and 495.88
Half scale
Find third proportional to 1,352 and 1,983.50
Double scale
Find third proportional to 678 and 995
Similar ratio
Find third proportional to 1,014 and 1,487.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.