Home / 397,250-555,675

Finding the Third Proportional to 397,250 and 555,675

Calculator

Solution

The third proportional to 397,250 and 555,675 is: 777,280.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,250 : 555,675 = 555,675 : x
  2. Step 2: Convert to fraction form
    397,250/555,675 = 555,675/x
  3. Step 3: Cross multiply
    397,250x = 555,675 × 555,675
  4. Step 4: Simplify right side
    397,250x = 308,774,705,625
  5. Step 5: Solve for x
    x = 308,774,705,625/397,250
  6. Step 6: Final answer
    x = 777,280.57

Related Problems

Find third proportional to 198,625 and 277,837.50
Half scale
Find third proportional to 794,500 and 1,111,350
Double scale
Find third proportional to 397,252 and 555,678
Similar ratio
Find third proportional to 595,875 and 833,512.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.