Home / 394,348.50-643,875.75

Finding the Third Proportional to 394,348.50 and 643,875.75

Calculator

Solution

The third proportional to 394,348.50 and 643,875.75 is: 1,051,293.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,348.50 : 643,875.75 = 643,875.75 : x
  2. Step 2: Convert to fraction form
    394,348.50/643,875.75 = 643,875.75/x
  3. Step 3: Cross multiply
    394,348.50x = 643,875.75 × 643,875.75
  4. Step 4: Simplify right side
    394,348.50x = 414,575,981,438.06
  5. Step 5: Solve for x
    x = 414,575,981,438.06/394,348.50
  6. Step 6: Final answer
    x = 1,051,293.42

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.