Home / 439-627

Finding the Third Proportional to 439 and 627

Calculator

Solution

The third proportional to 439 and 627 is: 895.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    439 : 627 = 627 : x
  2. Step 2: Convert to fraction form
    439/627 = 627/x
  3. Step 3: Cross multiply
    439x = 627 × 627
  4. Step 4: Simplify right side
    439x = 393,129
  5. Step 5: Solve for x
    x = 393,129/439
  6. Step 6: Final answer
    x = 895.51

Related Problems

Find third proportional to 219.50 and 313.50
Half scale
Find third proportional to 878 and 1,254
Double scale
Find third proportional to 441 and 630
Similar ratio
Find third proportional to 658.50 and 940.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.