Home / 717.75-864

Finding the Third Proportional to 717.75 and 864

Calculator

Solution

The third proportional to 717.75 and 864 is: 1,040.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    717.75 : 864 = 864 : x
  2. Step 2: Convert to fraction form
    717.75/864 = 864/x
  3. Step 3: Cross multiply
    717.75x = 864 × 864
  4. Step 4: Simplify right side
    717.75x = 746,496
  5. Step 5: Solve for x
    x = 746,496/717.75
  6. Step 6: Final answer
    x = 1,040.05

Related Problems

Find third proportional to 358.88 and 432
Half scale
Find third proportional to 1,435.50 and 1,728
Double scale
Find third proportional to 720 and 866
Similar ratio
Find third proportional to 1,076.63 and 1,296
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.