Home / 328,191-491,739

Finding the Third Proportional to 328,191 and 491,739

Calculator

Solution

The third proportional to 328,191 and 491,739 is: 736,788.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,191 : 491,739 = 491,739 : x
  2. Step 2: Convert to fraction form
    328,191/491,739 = 491,739/x
  3. Step 3: Cross multiply
    328,191x = 491,739 × 491,739
  4. Step 4: Simplify right side
    328,191x = 241,807,244,121
  5. Step 5: Solve for x
    x = 241,807,244,121/328,191
  6. Step 6: Final answer
    x = 736,788.16

Related Problems

Find third proportional to 164,095.50 and 245,869.50
Half scale
Find third proportional to 656,382 and 983,478
Double scale
Find third proportional to 328,193 and 491,742
Similar ratio
Find third proportional to 492,286.50 and 737,608.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.