Home / 317,082-660,408

Finding the Third Proportional to 317,082 and 660,408

Calculator

Solution

The third proportional to 317,082 and 660,408 is: 1,375,476.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,082 : 660,408 = 660,408 : x
  2. Step 2: Convert to fraction form
    317,082/660,408 = 660,408/x
  3. Step 3: Cross multiply
    317,082x = 660,408 × 660,408
  4. Step 4: Simplify right side
    317,082x = 436,138,726,464
  5. Step 5: Solve for x
    x = 436,138,726,464/317,082
  6. Step 6: Final answer
    x = 1,375,476.14

Related Problems

Find third proportional to 158,541 and 330,204
Half scale
Find third proportional to 634,164 and 1,320,816
Double scale
Find third proportional to 317,084 and 660,412
Similar ratio
Find third proportional to 475,623 and 990,612
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.