Home / 447-871

Finding the Third Proportional to 447 and 871

Calculator

Solution

The third proportional to 447 and 871 is: 1,697.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    447 : 871 = 871 : x
  2. Step 2: Convert to fraction form
    447/871 = 871/x
  3. Step 3: Cross multiply
    447x = 871 × 871
  4. Step 4: Simplify right side
    447x = 758,641
  5. Step 5: Solve for x
    x = 758,641/447
  6. Step 6: Final answer
    x = 1,697.18

Related Problems

Find third proportional to 223.50 and 435.50
Half scale
Find third proportional to 894 and 1,742
Double scale
Find third proportional to 449 and 875
Similar ratio
Find third proportional to 670.50 and 1,306.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.