Home / 284,486-427,485

Finding the Third Proportional to 284,486 and 427,485

Calculator

Solution

The third proportional to 284,486 and 427,485 is: 642,363.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,486 : 427,485 = 427,485 : x
  2. Step 2: Convert to fraction form
    284,486/427,485 = 427,485/x
  3. Step 3: Cross multiply
    284,486x = 427,485 × 427,485
  4. Step 4: Simplify right side
    284,486x = 182,743,425,225
  5. Step 5: Solve for x
    x = 182,743,425,225/284,486
  6. Step 6: Final answer
    x = 642,363.51

Related Problems

Find third proportional to 142,243 and 213,742.50
Half scale
Find third proportional to 568,972 and 854,970
Double scale
Find third proportional to 284,488 and 427,488
Similar ratio
Find third proportional to 426,729 and 641,227.50
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.