Home / 286,320-646,878

Finding the Third Proportional to 286,320 and 646,878

Calculator

Solution

The third proportional to 286,320 and 646,878 is: 1,461,480.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,320 : 646,878 = 646,878 : x
  2. Step 2: Convert to fraction form
    286,320/646,878 = 646,878/x
  3. Step 3: Cross multiply
    286,320x = 646,878 × 646,878
  4. Step 4: Simplify right side
    286,320x = 418,451,146,884
  5. Step 5: Solve for x
    x = 418,451,146,884/286,320
  6. Step 6: Final answer
    x = 1,461,480.68

Related Problems

Find third proportional to 143,160 and 323,439
Half scale
Find third proportional to 572,640 and 1,293,756
Double scale
Find third proportional to 286,322 and 646,883
Similar ratio
Find third proportional to 429,480 and 970,317
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.