Home / 378,932-810,382

Finding the Third Proportional to 378,932 and 810,382

Calculator

Solution

The third proportional to 378,932 and 810,382 is: 1,733,078.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,932 : 810,382 = 810,382 : x
  2. Step 2: Convert to fraction form
    378,932/810,382 = 810,382/x
  3. Step 3: Cross multiply
    378,932x = 810,382 × 810,382
  4. Step 4: Simplify right side
    378,932x = 656,718,985,924
  5. Step 5: Solve for x
    x = 656,718,985,924/378,932
  6. Step 6: Final answer
    x = 1,733,078.72

Related Problems

Find third proportional to 189,466 and 405,191
Half scale
Find third proportional to 757,864 and 1,620,764
Double scale
Find third proportional to 378,934 and 810,386
Similar ratio
Find third proportional to 568,398 and 1,215,573
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.