Home / 422,978-915,652

Finding the Third Proportional to 422,978 and 915,652

Calculator

Solution

The third proportional to 422,978 and 915,652 is: 1,982,180.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,978 : 915,652 = 915,652 : x
  2. Step 2: Convert to fraction form
    422,978/915,652 = 915,652/x
  3. Step 3: Cross multiply
    422,978x = 915,652 × 915,652
  4. Step 4: Simplify right side
    422,978x = 838,418,585,104
  5. Step 5: Solve for x
    x = 838,418,585,104/422,978
  6. Step 6: Final answer
    x = 1,982,180.13

Related Problems

Find third proportional to 211,489 and 457,826
Half scale
Find third proportional to 845,956 and 1,831,304
Double scale
Find third proportional to 422,980 and 915,656
Similar ratio
Find third proportional to 634,467 and 1,373,478
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.