Home / 298,098-638,852

Finding the Third Proportional to 298,098 and 638,852

Calculator

Solution

The third proportional to 298,098 and 638,852 is: 1,369,119.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,098 : 638,852 = 638,852 : x
  2. Step 2: Convert to fraction form
    298,098/638,852 = 638,852/x
  3. Step 3: Cross multiply
    298,098x = 638,852 × 638,852
  4. Step 4: Simplify right side
    298,098x = 408,131,877,904
  5. Step 5: Solve for x
    x = 408,131,877,904/298,098
  6. Step 6: Final answer
    x = 1,369,119.81

Related Problems

Find third proportional to 149,049 and 319,426
Half scale
Find third proportional to 596,196 and 1,277,704
Double scale
Find third proportional to 298,100 and 638,856
Similar ratio
Find third proportional to 447,147 and 958,278
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.