Home / 320,517-677,241

Finding the Third Proportional to 320,517 and 677,241

Calculator

Solution

The third proportional to 320,517 and 677,241 is: 1,430,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,517 : 677,241 = 677,241 : x
  2. Step 2: Convert to fraction form
    320,517/677,241 = 677,241/x
  3. Step 3: Cross multiply
    320,517x = 677,241 × 677,241
  4. Step 4: Simplify right side
    320,517x = 458,655,372,081
  5. Step 5: Solve for x
    x = 458,655,372,081/320,517
  6. Step 6: Final answer
    x = 1,430,986.10

Related Problems

Find third proportional to 160,258.50 and 338,620.50
Half scale
Find third proportional to 641,034 and 1,354,482
Double scale
Find third proportional to 320,519 and 677,245
Similar ratio
Find third proportional to 480,775.50 and 1,015,861.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.