Home / 328,800-718,480

Finding the Third Proportional to 328,800 and 718,480

Calculator

Solution

The third proportional to 328,800 and 718,480 is: 1,569,992.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,800 : 718,480 = 718,480 : x
  2. Step 2: Convert to fraction form
    328,800/718,480 = 718,480/x
  3. Step 3: Cross multiply
    328,800x = 718,480 × 718,480
  4. Step 4: Simplify right side
    328,800x = 516,213,510,400
  5. Step 5: Solve for x
    x = 516,213,510,400/328,800
  6. Step 6: Final answer
    x = 1,569,992.43

Related Problems

Find third proportional to 164,400 and 359,240
Half scale
Find third proportional to 657,600 and 1,436,960
Double scale
Find third proportional to 328,802 and 718,484
Similar ratio
Find third proportional to 493,200 and 1,077,720
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.