Home / 436-487

Finding the Third Proportional to 436 and 487

Calculator

Solution

The third proportional to 436 and 487 is: 543.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    436 : 487 = 487 : x
  2. Step 2: Convert to fraction form
    436/487 = 487/x
  3. Step 3: Cross multiply
    436x = 487 × 487
  4. Step 4: Simplify right side
    436x = 237,169
  5. Step 5: Solve for x
    x = 237,169/436
  6. Step 6: Final answer
    x = 543.97

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.