Home / 319,403-494,480

Finding the Third Proportional to 319,403 and 494,480

Calculator

Solution

The third proportional to 319,403 and 494,480 is: 765,523.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,403 : 494,480 = 494,480 : x
  2. Step 2: Convert to fraction form
    319,403/494,480 = 494,480/x
  3. Step 3: Cross multiply
    319,403x = 494,480 × 494,480
  4. Step 4: Simplify right side
    319,403x = 244,510,470,400
  5. Step 5: Solve for x
    x = 244,510,470,400/319,403
  6. Step 6: Final answer
    x = 765,523.40

Related Problems

Find third proportional to 159,701.50 and 247,240
Half scale
Find third proportional to 638,806 and 988,960
Double scale
Find third proportional to 319,405 and 494,483
Similar ratio
Find third proportional to 479,104.50 and 741,720
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.