Home / 386,961-557,367

Finding the Third Proportional to 386,961 and 557,367

Calculator

Solution

The third proportional to 386,961 and 557,367 is: 802,814.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,961 : 557,367 = 557,367 : x
  2. Step 2: Convert to fraction form
    386,961/557,367 = 557,367/x
  3. Step 3: Cross multiply
    386,961x = 557,367 × 557,367
  4. Step 4: Simplify right side
    386,961x = 310,657,972,689
  5. Step 5: Solve for x
    x = 310,657,972,689/386,961
  6. Step 6: Final answer
    x = 802,814.68

Related Problems

Find third proportional to 193,480.50 and 278,683.50
Half scale
Find third proportional to 773,922 and 1,114,734
Double scale
Find third proportional to 386,963 and 557,370
Similar ratio
Find third proportional to 580,441.50 and 836,050.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.