Home / 425.25-865.69

Finding the Third Proportional to 425.25 and 865.69

Calculator

Solution

The third proportional to 425.25 and 865.69 is: 1,762.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.25 : 865.69 = 865.69 : x
  2. Step 2: Convert to fraction form
    425.25/865.69 = 865.69/x
  3. Step 3: Cross multiply
    425.25x = 865.69 × 865.69
  4. Step 4: Simplify right side
    425.25x = 749,414.85
  5. Step 5: Solve for x
    x = 749,414.85/425.25
  6. Step 6: Final answer
    x = 1,762.29

Related Problems

Find third proportional to 212.63 and 432.84
Half scale
Find third proportional to 850.50 and 1,731.38
Double scale
Find third proportional to 427 and 870
Similar ratio
Find third proportional to 637.88 and 1,298.53
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.