Home / 355,860-777,384

Finding the Third Proportional to 355,860 and 777,384

Calculator

Solution

The third proportional to 355,860 and 777,384 is: 1,698,212.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,860 : 777,384 = 777,384 : x
  2. Step 2: Convert to fraction form
    355,860/777,384 = 777,384/x
  3. Step 3: Cross multiply
    355,860x = 777,384 × 777,384
  4. Step 4: Simplify right side
    355,860x = 604,325,883,456
  5. Step 5: Solve for x
    x = 604,325,883,456/355,860
  6. Step 6: Final answer
    x = 1,698,212.45

Related Problems

Find third proportional to 177,930 and 388,692
Half scale
Find third proportional to 711,720 and 1,554,768
Double scale
Find third proportional to 355,862 and 777,388
Similar ratio
Find third proportional to 533,790 and 1,166,076
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.