Home / 219,571-489,628

Finding the Third Proportional to 219,571 and 489,628

Calculator

Solution

The third proportional to 219,571 and 489,628 is: 1,091,836.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,571 : 489,628 = 489,628 : x
  2. Step 2: Convert to fraction form
    219,571/489,628 = 489,628/x
  3. Step 3: Cross multiply
    219,571x = 489,628 × 489,628
  4. Step 4: Simplify right side
    219,571x = 239,735,578,384
  5. Step 5: Solve for x
    x = 239,735,578,384/219,571
  6. Step 6: Final answer
    x = 1,091,836.26

Related Problems

Find third proportional to 109,785.50 and 244,814
Half scale
Find third proportional to 439,142 and 979,256
Double scale
Find third proportional to 219,573 and 489,632
Similar ratio
Find third proportional to 329,356.50 and 734,442
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.