Home / 394,494-640,923

Finding the Third Proportional to 394,494 and 640,923

Calculator

Solution

The third proportional to 394,494 and 640,923 is: 1,041,289.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,494 : 640,923 = 640,923 : x
  2. Step 2: Convert to fraction form
    394,494/640,923 = 640,923/x
  3. Step 3: Cross multiply
    394,494x = 640,923 × 640,923
  4. Step 4: Simplify right side
    394,494x = 410,782,291,929
  5. Step 5: Solve for x
    x = 410,782,291,929/394,494
  6. Step 6: Final answer
    x = 1,041,289.07

Related Problems

Find third proportional to 197,247 and 320,461.50
Half scale
Find third proportional to 788,988 and 1,281,846
Double scale
Find third proportional to 394,496 and 640,926
Similar ratio
Find third proportional to 591,741 and 961,384.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.