Home / 389,517-582,719

Finding the Third Proportional to 389,517 and 582,719

Calculator

Solution

The third proportional to 389,517 and 582,719 is: 871,749.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,517 : 582,719 = 582,719 : x
  2. Step 2: Convert to fraction form
    389,517/582,719 = 582,719/x
  3. Step 3: Cross multiply
    389,517x = 582,719 × 582,719
  4. Step 4: Simplify right side
    389,517x = 339,561,432,961
  5. Step 5: Solve for x
    x = 339,561,432,961/389,517
  6. Step 6: Final answer
    x = 871,749.97

Related Problems

Find third proportional to 194,758.50 and 291,359.50
Half scale
Find third proportional to 779,034 and 1,165,438
Double scale
Find third proportional to 389,519 and 582,722
Similar ratio
Find third proportional to 584,275.50 and 874,078.50
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.