Home / 299,640.75-643,749.75

Finding the Third Proportional to 299,640.75 and 643,749.75

Calculator

Solution

The third proportional to 299,640.75 and 643,749.75 is: 1,383,035.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,640.75 : 643,749.75 = 643,749.75 : x
  2. Step 2: Convert to fraction form
    299,640.75/643,749.75 = 643,749.75/x
  3. Step 3: Cross multiply
    299,640.75x = 643,749.75 × 643,749.75
  4. Step 4: Simplify right side
    299,640.75x = 414,413,740,625.06
  5. Step 5: Solve for x
    x = 414,413,740,625.06/299,640.75
  6. Step 6: Final answer
    x = 1,383,035.32

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.