Home / 642,360-1,383,378

Finding the Third Proportional to 642,360 and 1,383,378

Calculator

Solution

The third proportional to 642,360 and 1,383,378 is: 2,979,224.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,360 : 1,383,378 = 1,383,378 : x
  2. Step 2: Convert to fraction form
    642,360/1,383,378 = 1,383,378/x
  3. Step 3: Cross multiply
    642,360x = 1,383,378 × 1,383,378
  4. Step 4: Simplify right side
    642,360x = 1,913,734,690,884
  5. Step 5: Solve for x
    x = 1,913,734,690,884/642,360
  6. Step 6: Final answer
    x = 2,979,224.56

Related Problems

Find third proportional to 321,180 and 691,689
Half scale
Find third proportional to 1,284,720 and 2,766,756
Double scale
Find third proportional to 642,362 and 1,383,382
Similar ratio
Find third proportional to 963,540 and 2,075,067
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.