Home / 439,600-685,081

Finding the Third Proportional to 439,600 and 685,081

Calculator

Solution

The third proportional to 439,600 and 685,081 is: 1,067,643.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,600 : 685,081 = 685,081 : x
  2. Step 2: Convert to fraction form
    439,600/685,081 = 685,081/x
  3. Step 3: Cross multiply
    439,600x = 685,081 × 685,081
  4. Step 4: Simplify right side
    439,600x = 469,335,976,561
  5. Step 5: Solve for x
    x = 469,335,976,561/439,600
  6. Step 6: Final answer
    x = 1,067,643.26

Related Problems

Find third proportional to 219,800 and 342,540.50
Half scale
Find third proportional to 879,200 and 1,370,162
Double scale
Find third proportional to 439,602 and 685,084
Similar ratio
Find third proportional to 659,400 and 1,027,621.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.