Home / 347,112-721,872

Finding the Third Proportional to 347,112 and 721,872

Calculator

Solution

The third proportional to 347,112 and 721,872 is: 1,501,242.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,112 : 721,872 = 721,872 : x
  2. Step 2: Convert to fraction form
    347,112/721,872 = 721,872/x
  3. Step 3: Cross multiply
    347,112x = 721,872 × 721,872
  4. Step 4: Simplify right side
    347,112x = 521,099,184,384
  5. Step 5: Solve for x
    x = 521,099,184,384/347,112
  6. Step 6: Final answer
    x = 1,501,242.21

Related Problems

Find third proportional to 173,556 and 360,936
Half scale
Find third proportional to 694,224 and 1,443,744
Double scale
Find third proportional to 347,114 and 721,876
Similar ratio
Find third proportional to 520,668 and 1,082,808
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.