Home / 400-654.50

Finding the Third Proportional to 400 and 654.50

Calculator

Solution

The third proportional to 400 and 654.50 is: 1,070.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    400 : 654.50 = 654.50 : x
  2. Step 2: Convert to fraction form
    400/654.50 = 654.50/x
  3. Step 3: Cross multiply
    400x = 654.50 × 654.50
  4. Step 4: Simplify right side
    400x = 428,370.25
  5. Step 5: Solve for x
    x = 428,370.25/400
  6. Step 6: Final answer
    x = 1,070.93

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.