Home / 642,837-1,382,418

Finding the Third Proportional to 642,837 and 1,382,418

Calculator

Solution

The third proportional to 642,837 and 1,382,418 is: 2,972,883.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,837 : 1,382,418 = 1,382,418 : x
  2. Step 2: Convert to fraction form
    642,837/1,382,418 = 1,382,418/x
  3. Step 3: Cross multiply
    642,837x = 1,382,418 × 1,382,418
  4. Step 4: Simplify right side
    642,837x = 1,911,079,526,724
  5. Step 5: Solve for x
    x = 1,911,079,526,724/642,837
  6. Step 6: Final answer
    x = 2,972,883.53

Related Problems

Find third proportional to 321,418.50 and 691,209
Half scale
Find third proportional to 1,285,674 and 2,764,836
Double scale
Find third proportional to 642,839 and 1,382,422
Similar ratio
Find third proportional to 964,255.50 and 2,073,627
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.