Home / 399,122-602,828

Finding the Third Proportional to 399,122 and 602,828

Calculator

Solution

The third proportional to 399,122 and 602,828 is: 910,502.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,122 : 602,828 = 602,828 : x
  2. Step 2: Convert to fraction form
    399,122/602,828 = 602,828/x
  3. Step 3: Cross multiply
    399,122x = 602,828 × 602,828
  4. Step 4: Simplify right side
    399,122x = 363,401,597,584
  5. Step 5: Solve for x
    x = 363,401,597,584/399,122
  6. Step 6: Final answer
    x = 910,502.55

Related Problems

Find third proportional to 199,561 and 301,414
Half scale
Find third proportional to 798,244 and 1,205,656
Double scale
Find third proportional to 399,124 and 602,831
Similar ratio
Find third proportional to 598,683 and 904,242
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.