Home / 317,124-660,480

Finding the Third Proportional to 317,124 and 660,480

Calculator

Solution

The third proportional to 317,124 and 660,480 is: 1,375,593.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,124 : 660,480 = 660,480 : x
  2. Step 2: Convert to fraction form
    317,124/660,480 = 660,480/x
  3. Step 3: Cross multiply
    317,124x = 660,480 × 660,480
  4. Step 4: Simplify right side
    317,124x = 436,233,830,400
  5. Step 5: Solve for x
    x = 436,233,830,400/317,124
  6. Step 6: Final answer
    x = 1,375,593.87

Related Problems

Find third proportional to 158,562 and 330,240
Half scale
Find third proportional to 634,248 and 1,320,960
Double scale
Find third proportional to 317,126 and 660,484
Similar ratio
Find third proportional to 475,686 and 990,720
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.