Home / 335,860-691,424

Finding the Third Proportional to 335,860 and 691,424

Calculator

Solution

The third proportional to 335,860 and 691,424 is: 1,423,411.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,860 : 691,424 = 691,424 : x
  2. Step 2: Convert to fraction form
    335,860/691,424 = 691,424/x
  3. Step 3: Cross multiply
    335,860x = 691,424 × 691,424
  4. Step 4: Simplify right side
    335,860x = 478,067,147,776
  5. Step 5: Solve for x
    x = 478,067,147,776/335,860
  6. Step 6: Final answer
    x = 1,423,411.98

Related Problems

Find third proportional to 167,930 and 345,712
Half scale
Find third proportional to 671,720 and 1,382,848
Double scale
Find third proportional to 335,862 and 691,428
Similar ratio
Find third proportional to 503,790 and 1,037,136
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.