Home / 436-654

Finding the Third Proportional to 436 and 654

Calculator

Solution

The third proportional to 436 and 654 is: 981

Step by Step Solution

  1. Step 1: Write the proportion equation
    436 : 654 = 654 : x
  2. Step 2: Convert to fraction form
    436/654 = 654/x
  3. Step 3: Cross multiply
    436x = 654 × 654
  4. Step 4: Simplify right side
    436x = 427,716
  5. Step 5: Solve for x
    x = 427,716/436
  6. Step 6: Final answer
    x = 981

Related Problems

Find third proportional to 218 and 327
Half scale
Find third proportional to 872 and 1,308
Double scale
Find third proportional to 438 and 657
Similar ratio
Find third proportional to 654 and 981
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.