Home / 635.25-679.50

Finding the Third Proportional to 635.25 and 679.50

Calculator

Solution

The third proportional to 635.25 and 679.50 is: 726.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.25 : 679.50 = 679.50 : x
  2. Step 2: Convert to fraction form
    635.25/679.50 = 679.50/x
  3. Step 3: Cross multiply
    635.25x = 679.50 × 679.50
  4. Step 4: Simplify right side
    635.25x = 461,720.25
  5. Step 5: Solve for x
    x = 461,720.25/635.25
  6. Step 6: Final answer
    x = 726.83

Related Problems

Find third proportional to 317.63 and 339.75
Half scale
Find third proportional to 1,270.50 and 1,359
Double scale
Find third proportional to 637 and 682
Similar ratio
Find third proportional to 952.88 and 1,019.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.