Home / 820,370-1,241,889

Finding the Third Proportional to 820,370 and 1,241,889

Calculator

Solution

The third proportional to 820,370 and 1,241,889 is: 1,879,991.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,370 : 1,241,889 = 1,241,889 : x
  2. Step 2: Convert to fraction form
    820,370/1,241,889 = 1,241,889/x
  3. Step 3: Cross multiply
    820,370x = 1,241,889 × 1,241,889
  4. Step 4: Simplify right side
    820,370x = 1,542,288,288,321
  5. Step 5: Solve for x
    x = 1,542,288,288,321/820,370
  6. Step 6: Final answer
    x = 1,879,991.09

Related Problems

Find third proportional to 410,185 and 620,944.50
Half scale
Find third proportional to 1,640,740 and 2,483,778
Double scale
Find third proportional to 820,372 and 1,241,892
Similar ratio
Find third proportional to 1,230,555 and 1,862,833.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.