Home / 387,814-810,762

Finding the Third Proportional to 387,814 and 810,762

Calculator

Solution

The third proportional to 387,814 and 810,762 is: 1,694,974.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,814 : 810,762 = 810,762 : x
  2. Step 2: Convert to fraction form
    387,814/810,762 = 810,762/x
  3. Step 3: Cross multiply
    387,814x = 810,762 × 810,762
  4. Step 4: Simplify right side
    387,814x = 657,335,020,644
  5. Step 5: Solve for x
    x = 657,335,020,644/387,814
  6. Step 6: Final answer
    x = 1,694,974.96

Related Problems

Find third proportional to 193,907 and 405,381
Half scale
Find third proportional to 775,628 and 1,621,524
Double scale
Find third proportional to 387,816 and 810,766
Similar ratio
Find third proportional to 581,721 and 1,216,143
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.