Home / 396.75-862.50

Finding the Third Proportional to 396.75 and 862.50

Calculator

Solution

The third proportional to 396.75 and 862.50 is: 1,875

Step by Step Solution

  1. Step 1: Write the proportion equation
    396.75 : 862.50 = 862.50 : x
  2. Step 2: Convert to fraction form
    396.75/862.50 = 862.50/x
  3. Step 3: Cross multiply
    396.75x = 862.50 × 862.50
  4. Step 4: Simplify right side
    396.75x = 743,906.25
  5. Step 5: Solve for x
    x = 743,906.25/396.75
  6. Step 6: Final answer
    x = 1,875

Related Problems

Find third proportional to 198.38 and 431.25
Half scale
Find third proportional to 793.50 and 1,725
Double scale
Find third proportional to 399 and 867
Similar ratio
Find third proportional to 595.13 and 1,293.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.