Home / 215,756-458,728

Finding the Third Proportional to 215,756 and 458,728

Calculator

Solution

The third proportional to 215,756 and 458,728 is: 975,321.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,756 : 458,728 = 458,728 : x
  2. Step 2: Convert to fraction form
    215,756/458,728 = 458,728/x
  3. Step 3: Cross multiply
    215,756x = 458,728 × 458,728
  4. Step 4: Simplify right side
    215,756x = 210,431,377,984
  5. Step 5: Solve for x
    x = 210,431,377,984/215,756
  6. Step 6: Final answer
    x = 975,321.09

Related Problems

Find third proportional to 107,878 and 229,364
Half scale
Find third proportional to 431,512 and 917,456
Double scale
Find third proportional to 215,758 and 458,732
Similar ratio
Find third proportional to 323,634 and 688,092
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.