Home / 609-731

Finding the Third Proportional to 609 and 731

Calculator

Solution

The third proportional to 609 and 731 is: 877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    609 : 731 = 731 : x
  2. Step 2: Convert to fraction form
    609/731 = 731/x
  3. Step 3: Cross multiply
    609x = 731 × 731
  4. Step 4: Simplify right side
    609x = 534,361
  5. Step 5: Solve for x
    x = 534,361/609
  6. Step 6: Final answer
    x = 877.44

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.