Home / 417.75-909.75

Finding the Third Proportional to 417.75 and 909.75

Calculator

Solution

The third proportional to 417.75 and 909.75 is: 1,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.75 : 909.75 = 909.75 : x
  2. Step 2: Convert to fraction form
    417.75/909.75 = 909.75/x
  3. Step 3: Cross multiply
    417.75x = 909.75 × 909.75
  4. Step 4: Simplify right side
    417.75x = 827,645.06
  5. Step 5: Solve for x
    x = 827,645.06/417.75
  6. Step 6: Final answer
    x = 1,981.20

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.