Home / 285,395-419,817

Finding the Third Proportional to 285,395 and 419,817

Calculator

Solution

The third proportional to 285,395 and 419,817 is: 617,552.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,395 : 419,817 = 419,817 : x
  2. Step 2: Convert to fraction form
    285,395/419,817 = 419,817/x
  3. Step 3: Cross multiply
    285,395x = 419,817 × 419,817
  4. Step 4: Simplify right side
    285,395x = 176,246,313,489
  5. Step 5: Solve for x
    x = 176,246,313,489/285,395
  6. Step 6: Final answer
    x = 617,552.21

Related Problems

Find third proportional to 142,697.50 and 209,908.50
Half scale
Find third proportional to 570,790 and 839,634
Double scale
Find third proportional to 285,397 and 419,820
Similar ratio
Find third proportional to 428,092.50 and 629,725.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.