Home / 491-806

Finding the Third Proportional to 491 and 806

Calculator

Solution

The third proportional to 491 and 806 is: 1,323.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    491 : 806 = 806 : x
  2. Step 2: Convert to fraction form
    491/806 = 806/x
  3. Step 3: Cross multiply
    491x = 806 × 806
  4. Step 4: Simplify right side
    491x = 649,636
  5. Step 5: Solve for x
    x = 649,636/491
  6. Step 6: Final answer
    x = 1,323.09

Related Problems

Find third proportional to 245.50 and 403
Half scale
Find third proportional to 982 and 1,612
Double scale
Find third proportional to 493 and 809
Similar ratio
Find third proportional to 736.50 and 1,209
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.