Home / 723.75-867.75

Finding the Third Proportional to 723.75 and 867.75

Calculator

Solution

The third proportional to 723.75 and 867.75 is: 1,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    723.75 : 867.75 = 867.75 : x
  2. Step 2: Convert to fraction form
    723.75/867.75 = 867.75/x
  3. Step 3: Cross multiply
    723.75x = 867.75 × 867.75
  4. Step 4: Simplify right side
    723.75x = 752,990.06
  5. Step 5: Solve for x
    x = 752,990.06/723.75
  6. Step 6: Final answer
    x = 1,040.40

Related Problems

Find third proportional to 361.88 and 433.88
Half scale
Find third proportional to 1,447.50 and 1,735.50
Double scale
Find third proportional to 726 and 870
Similar ratio
Find third proportional to 1,085.63 and 1,301.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.