Home / 405,936-871,725

Finding the Third Proportional to 405,936 and 871,725

Calculator

Solution

The third proportional to 405,936 and 871,725 is: 1,871,980.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,936 : 871,725 = 871,725 : x
  2. Step 2: Convert to fraction form
    405,936/871,725 = 871,725/x
  3. Step 3: Cross multiply
    405,936x = 871,725 × 871,725
  4. Step 4: Simplify right side
    405,936x = 759,904,475,625
  5. Step 5: Solve for x
    x = 759,904,475,625/405,936
  6. Step 6: Final answer
    x = 1,871,980.99

Related Problems

Find third proportional to 202,968 and 435,862.50
Half scale
Find third proportional to 811,872 and 1,743,450
Double scale
Find third proportional to 405,938 and 871,729
Similar ratio
Find third proportional to 608,904 and 1,307,587.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.