Home / 277,869-422,799

Finding the Third Proportional to 277,869 and 422,799

Calculator

Solution

The third proportional to 277,869 and 422,799 is: 643,321.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,869 : 422,799 = 422,799 : x
  2. Step 2: Convert to fraction form
    277,869/422,799 = 422,799/x
  3. Step 3: Cross multiply
    277,869x = 422,799 × 422,799
  4. Step 4: Simplify right side
    277,869x = 178,758,994,401
  5. Step 5: Solve for x
    x = 178,758,994,401/277,869
  6. Step 6: Final answer
    x = 643,321.11

Related Problems

Find third proportional to 138,934.50 and 211,399.50
Half scale
Find third proportional to 555,738 and 845,598
Double scale
Find third proportional to 277,871 and 422,802
Similar ratio
Find third proportional to 416,803.50 and 634,198.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.