Home / 286,086.25-420,371.25

Finding the Third Proportional to 286,086.25 and 420,371.25

Calculator

Solution

The third proportional to 286,086.25 and 420,371.25 is: 617,687.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,086.25 : 420,371.25 = 420,371.25 : x
  2. Step 2: Convert to fraction form
    286,086.25/420,371.25 = 420,371.25/x
  3. Step 3: Cross multiply
    286,086.25x = 420,371.25 × 420,371.25
  4. Step 4: Simplify right side
    286,086.25x = 176,711,987,826.56
  5. Step 5: Solve for x
    x = 176,711,987,826.56/286,086.25
  6. Step 6: Final answer
    x = 617,687.81

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.