Home / 355,864-777,391

Finding the Third Proportional to 355,864 and 777,391

Calculator

Solution

The third proportional to 355,864 and 777,391 is: 1,698,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,864 : 777,391 = 777,391 : x
  2. Step 2: Convert to fraction form
    355,864/777,391 = 777,391/x
  3. Step 3: Cross multiply
    355,864x = 777,391 × 777,391
  4. Step 4: Simplify right side
    355,864x = 604,336,766,881
  5. Step 5: Solve for x
    x = 604,336,766,881/355,864
  6. Step 6: Final answer
    x = 1,698,223.95

Related Problems

Find third proportional to 177,932 and 388,695.50
Half scale
Find third proportional to 711,728 and 1,554,782
Double scale
Find third proportional to 355,866 and 777,395
Similar ratio
Find third proportional to 533,796 and 1,166,086.50
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.