Home / 276,636-439,974

Finding the Third Proportional to 276,636 and 439,974

Calculator

Solution

The third proportional to 276,636 and 439,974 is: 699,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,636 : 439,974 = 439,974 : x
  2. Step 2: Convert to fraction form
    276,636/439,974 = 439,974/x
  3. Step 3: Cross multiply
    276,636x = 439,974 × 439,974
  4. Step 4: Simplify right side
    276,636x = 193,577,120,676
  5. Step 5: Solve for x
    x = 193,577,120,676/276,636
  6. Step 6: Final answer
    x = 699,753.90

Related Problems

Find third proportional to 138,318 and 219,987
Half scale
Find third proportional to 553,272 and 879,948
Double scale
Find third proportional to 276,638 and 439,977
Similar ratio
Find third proportional to 414,954 and 659,961
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.