Home / 489,328-756,256

Finding the Third Proportional to 489,328 and 756,256

Calculator

Solution

The third proportional to 489,328 and 756,256 is: 1,168,792.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,328 : 756,256 = 756,256 : x
  2. Step 2: Convert to fraction form
    489,328/756,256 = 756,256/x
  3. Step 3: Cross multiply
    489,328x = 756,256 × 756,256
  4. Step 4: Simplify right side
    489,328x = 571,923,137,536
  5. Step 5: Solve for x
    x = 571,923,137,536/489,328
  6. Step 6: Final answer
    x = 1,168,792.99

Related Problems

Find third proportional to 244,664 and 378,128
Half scale
Find third proportional to 978,656 and 1,512,512
Double scale
Find third proportional to 489,330 and 756,259
Similar ratio
Find third proportional to 733,992 and 1,134,384
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.