Home / 397,323-869,728

Finding the Third Proportional to 397,323 and 869,728

Calculator

Solution

The third proportional to 397,323 and 869,728 is: 1,903,808.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,323 : 869,728 = 869,728 : x
  2. Step 2: Convert to fraction form
    397,323/869,728 = 869,728/x
  3. Step 3: Cross multiply
    397,323x = 869,728 × 869,728
  4. Step 4: Simplify right side
    397,323x = 756,426,793,984
  5. Step 5: Solve for x
    x = 756,426,793,984/397,323
  6. Step 6: Final answer
    x = 1,903,808.22

Related Problems

Find third proportional to 198,661.50 and 434,864
Half scale
Find third proportional to 794,646 and 1,739,456
Double scale
Find third proportional to 397,325 and 869,732
Similar ratio
Find third proportional to 595,984.50 and 1,304,592
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.