Home / 270,698-378,441

Finding the Third Proportional to 270,698 and 378,441

Calculator

Solution

The third proportional to 270,698 and 378,441 is: 529,067.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,698 : 378,441 = 378,441 : x
  2. Step 2: Convert to fraction form
    270,698/378,441 = 378,441/x
  3. Step 3: Cross multiply
    270,698x = 378,441 × 378,441
  4. Step 4: Simplify right side
    270,698x = 143,217,590,481
  5. Step 5: Solve for x
    x = 143,217,590,481/270,698
  6. Step 6: Final answer
    x = 529,067.78

Related Problems

Find third proportional to 135,349 and 189,220.50
Half scale
Find third proportional to 541,396 and 756,882
Double scale
Find third proportional to 270,700 and 378,444
Similar ratio
Find third proportional to 406,047 and 567,661.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.