Home / 408,168-612,663

Finding the Third Proportional to 408,168 and 612,663

Calculator

Solution

The third proportional to 408,168 and 612,663 is: 919,611.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,168 : 612,663 = 612,663 : x
  2. Step 2: Convert to fraction form
    408,168/612,663 = 612,663/x
  3. Step 3: Cross multiply
    408,168x = 612,663 × 612,663
  4. Step 4: Simplify right side
    408,168x = 375,355,951,569
  5. Step 5: Solve for x
    x = 375,355,951,569/408,168
  6. Step 6: Final answer
    x = 919,611.41

Related Problems

Find third proportional to 204,084 and 306,331.50
Half scale
Find third proportional to 816,336 and 1,225,326
Double scale
Find third proportional to 408,170 and 612,666
Similar ratio
Find third proportional to 612,252 and 918,994.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.