Home / 225,225-489,390

Finding the Third Proportional to 225,225 and 489,390

Calculator

Solution

The third proportional to 225,225 and 489,390 is: 1,063,392.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,225 : 489,390 = 489,390 : x
  2. Step 2: Convert to fraction form
    225,225/489,390 = 489,390/x
  3. Step 3: Cross multiply
    225,225x = 489,390 × 489,390
  4. Step 4: Simplify right side
    225,225x = 239,502,572,100
  5. Step 5: Solve for x
    x = 239,502,572,100/225,225
  6. Step 6: Final answer
    x = 1,063,392.48

Related Problems

Find third proportional to 112,612.50 and 244,695
Half scale
Find third proportional to 450,450 and 978,780
Double scale
Find third proportional to 225,227 and 489,394
Similar ratio
Find third proportional to 337,837.50 and 734,085
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.