Home / 220,812-478,965

Finding the Third Proportional to 220,812 and 478,965

Calculator

Solution

The third proportional to 220,812 and 478,965 is: 1,038,926.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,812 : 478,965 = 478,965 : x
  2. Step 2: Convert to fraction form
    220,812/478,965 = 478,965/x
  3. Step 3: Cross multiply
    220,812x = 478,965 × 478,965
  4. Step 4: Simplify right side
    220,812x = 229,407,471,225
  5. Step 5: Solve for x
    x = 229,407,471,225/220,812
  6. Step 6: Final answer
    x = 1,038,926.65

Related Problems

Find third proportional to 110,406 and 239,482.50
Half scale
Find third proportional to 441,624 and 957,930
Double scale
Find third proportional to 220,814 and 478,969
Similar ratio
Find third proportional to 331,218 and 718,447.50
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.