Home / 401,890-866,878

Finding the Third Proportional to 401,890 and 866,878

Calculator

Solution

The third proportional to 401,890 and 866,878 is: 1,869,858.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,890 : 866,878 = 866,878 : x
  2. Step 2: Convert to fraction form
    401,890/866,878 = 866,878/x
  3. Step 3: Cross multiply
    401,890x = 866,878 × 866,878
  4. Step 4: Simplify right side
    401,890x = 751,477,466,884
  5. Step 5: Solve for x
    x = 751,477,466,884/401,890
  6. Step 6: Final answer
    x = 1,869,858.59

Related Problems

Find third proportional to 200,945 and 433,439
Half scale
Find third proportional to 803,780 and 1,733,756
Double scale
Find third proportional to 401,892 and 866,882
Similar ratio
Find third proportional to 602,835 and 1,300,317
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.