Home / 618,438-1,330,371

Finding the Third Proportional to 618,438 and 1,330,371

Calculator

Solution

The third proportional to 618,438 and 1,330,371 is: 2,861,866.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,438 : 1,330,371 = 1,330,371 : x
  2. Step 2: Convert to fraction form
    618,438/1,330,371 = 1,330,371/x
  3. Step 3: Cross multiply
    618,438x = 1,330,371 × 1,330,371
  4. Step 4: Simplify right side
    618,438x = 1,769,886,997,641
  5. Step 5: Solve for x
    x = 1,769,886,997,641/618,438
  6. Step 6: Final answer
    x = 2,861,866.51

Related Problems

Find third proportional to 309,219 and 665,185.50
Half scale
Find third proportional to 1,236,876 and 2,660,742
Double scale
Find third proportional to 618,440 and 1,330,375
Similar ratio
Find third proportional to 927,657 and 1,995,556.50
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.