Home / 394,532-558,255

Finding the Third Proportional to 394,532 and 558,255

Calculator

Solution

The third proportional to 394,532 and 558,255 is: 789,919.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,532 : 558,255 = 558,255 : x
  2. Step 2: Convert to fraction form
    394,532/558,255 = 558,255/x
  3. Step 3: Cross multiply
    394,532x = 558,255 × 558,255
  4. Step 4: Simplify right side
    394,532x = 311,648,645,025
  5. Step 5: Solve for x
    x = 311,648,645,025/394,532
  6. Step 6: Final answer
    x = 789,919.82

Related Problems

Find third proportional to 197,266 and 279,127.50
Half scale
Find third proportional to 789,064 and 1,116,510
Double scale
Find third proportional to 394,534 and 558,258
Similar ratio
Find third proportional to 591,798 and 837,382.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.