Home / 422,606-620,976

Finding the Third Proportional to 422,606 and 620,976

Calculator

Solution

The third proportional to 422,606 and 620,976 is: 912,460.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,606 : 620,976 = 620,976 : x
  2. Step 2: Convert to fraction form
    422,606/620,976 = 620,976/x
  3. Step 3: Cross multiply
    422,606x = 620,976 × 620,976
  4. Step 4: Simplify right side
    422,606x = 385,611,192,576
  5. Step 5: Solve for x
    x = 385,611,192,576/422,606
  6. Step 6: Final answer
    x = 912,460.29

Related Problems

Find third proportional to 211,303 and 310,488
Half scale
Find third proportional to 845,212 and 1,241,952
Double scale
Find third proportional to 422,608 and 620,979
Similar ratio
Find third proportional to 633,909 and 931,464
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.