Home / 606.66-698.20

Finding the Third Proportional to 606.66 and 698.20

Calculator

Solution

The third proportional to 606.66 and 698.20 is: 803.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.66 : 698.20 = 698.20 : x
  2. Step 2: Convert to fraction form
    606.66/698.20 = 698.20/x
  3. Step 3: Cross multiply
    606.66x = 698.20 × 698.20
  4. Step 4: Simplify right side
    606.66x = 487,487.60
  5. Step 5: Solve for x
    x = 487,487.60/606.66
  6. Step 6: Final answer
    x = 803.56

Related Problems

Find third proportional to 303.33 and 349.10
Half scale
Find third proportional to 1,213.31 and 1,396.41
Double scale
Find third proportional to 609 and 701
Similar ratio
Find third proportional to 909.98 and 1,047.30
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.