Home / 407,268-877,716

Finding the Third Proportional to 407,268 and 877,716

Calculator

Solution

The third proportional to 407,268 and 877,716 is: 1,891,593.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,268 : 877,716 = 877,716 : x
  2. Step 2: Convert to fraction form
    407,268/877,716 = 877,716/x
  3. Step 3: Cross multiply
    407,268x = 877,716 × 877,716
  4. Step 4: Simplify right side
    407,268x = 770,385,376,656
  5. Step 5: Solve for x
    x = 770,385,376,656/407,268
  6. Step 6: Final answer
    x = 1,891,593.19

Related Problems

Find third proportional to 203,634 and 438,858
Half scale
Find third proportional to 814,536 and 1,755,432
Double scale
Find third proportional to 407,270 and 877,720
Similar ratio
Find third proportional to 610,902 and 1,316,574
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.