Home / 621,800-1,338,732

Finding the Third Proportional to 621,800 and 1,338,732

Calculator

Solution

The third proportional to 621,800 and 1,338,732 is: 2,882,282.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,800 : 1,338,732 = 1,338,732 : x
  2. Step 2: Convert to fraction form
    621,800/1,338,732 = 1,338,732/x
  3. Step 3: Cross multiply
    621,800x = 1,338,732 × 1,338,732
  4. Step 4: Simplify right side
    621,800x = 1,792,203,367,824
  5. Step 5: Solve for x
    x = 1,792,203,367,824/621,800
  6. Step 6: Final answer
    x = 2,882,282.68

Related Problems

Find third proportional to 310,900 and 669,366
Half scale
Find third proportional to 1,243,600 and 2,677,464
Double scale
Find third proportional to 621,802 and 1,338,736
Similar ratio
Find third proportional to 932,700 and 2,008,098
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.