Home / 223,422-486,990

Finding the Third Proportional to 223,422 and 486,990

Calculator

Solution

The third proportional to 223,422 and 486,990 is: 1,061,485.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,422 : 486,990 = 486,990 : x
  2. Step 2: Convert to fraction form
    223,422/486,990 = 486,990/x
  3. Step 3: Cross multiply
    223,422x = 486,990 × 486,990
  4. Step 4: Simplify right side
    223,422x = 237,159,260,100
  5. Step 5: Solve for x
    x = 237,159,260,100/223,422
  6. Step 6: Final answer
    x = 1,061,485.71

Related Problems

Find third proportional to 111,711 and 243,495
Half scale
Find third proportional to 446,844 and 973,980
Double scale
Find third proportional to 223,424 and 486,994
Similar ratio
Find third proportional to 335,133 and 730,485
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.