Home / 444.75-687

Finding the Third Proportional to 444.75 and 687

Calculator

Solution

The third proportional to 444.75 and 687 is: 1,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.75 : 687 = 687 : x
  2. Step 2: Convert to fraction form
    444.75/687 = 687/x
  3. Step 3: Cross multiply
    444.75x = 687 × 687
  4. Step 4: Simplify right side
    444.75x = 471,969
  5. Step 5: Solve for x
    x = 471,969/444.75
  6. Step 6: Final answer
    x = 1,061.20

Related Problems

Find third proportional to 222.38 and 343.50
Half scale
Find third proportional to 889.50 and 1,374
Double scale
Find third proportional to 447 and 690
Similar ratio
Find third proportional to 667.13 and 1,030.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.