Home / 408,589-634,134

Finding the Third Proportional to 408,589 and 634,134

Calculator

Solution

The third proportional to 408,589 and 634,134 is: 984,181.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,589 : 634,134 = 634,134 : x
  2. Step 2: Convert to fraction form
    408,589/634,134 = 634,134/x
  3. Step 3: Cross multiply
    408,589x = 634,134 × 634,134
  4. Step 4: Simplify right side
    408,589x = 402,125,929,956
  5. Step 5: Solve for x
    x = 402,125,929,956/408,589
  6. Step 6: Final answer
    x = 984,181.98

Related Problems

Find third proportional to 204,294.50 and 317,067
Half scale
Find third proportional to 817,178 and 1,268,268
Double scale
Find third proportional to 408,591 and 634,137
Similar ratio
Find third proportional to 612,883.50 and 951,201
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.