Home / 696.75-798.75

Finding the Third Proportional to 696.75 and 798.75

Calculator

Solution

The third proportional to 696.75 and 798.75 is: 915.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.75 : 798.75 = 798.75 : x
  2. Step 2: Convert to fraction form
    696.75/798.75 = 798.75/x
  3. Step 3: Cross multiply
    696.75x = 798.75 × 798.75
  4. Step 4: Simplify right side
    696.75x = 638,001.56
  5. Step 5: Solve for x
    x = 638,001.56/696.75
  6. Step 6: Final answer
    x = 915.68

Related Problems

Find third proportional to 348.38 and 399.38
Half scale
Find third proportional to 1,393.50 and 1,597.50
Double scale
Find third proportional to 699 and 801
Similar ratio
Find third proportional to 1,045.13 and 1,198.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.