Home / 394,576-618,320

Finding the Third Proportional to 394,576 and 618,320

Calculator

Solution

The third proportional to 394,576 and 618,320 is: 968,937.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,576 : 618,320 = 618,320 : x
  2. Step 2: Convert to fraction form
    394,576/618,320 = 618,320/x
  3. Step 3: Cross multiply
    394,576x = 618,320 × 618,320
  4. Step 4: Simplify right side
    394,576x = 382,319,622,400
  5. Step 5: Solve for x
    x = 382,319,622,400/394,576
  6. Step 6: Final answer
    x = 968,937.85

Related Problems

Find third proportional to 197,288 and 309,160
Half scale
Find third proportional to 789,152 and 1,236,640
Double scale
Find third proportional to 394,578 and 618,323
Similar ratio
Find third proportional to 591,864 and 927,480
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.