Home / 660-987.50

Finding the Third Proportional to 660 and 987.50

Calculator

Solution

The third proportional to 660 and 987.50 is: 1,477.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    660 : 987.50 = 987.50 : x
  2. Step 2: Convert to fraction form
    660/987.50 = 987.50/x
  3. Step 3: Cross multiply
    660x = 987.50 × 987.50
  4. Step 4: Simplify right side
    660x = 975,156.25
  5. Step 5: Solve for x
    x = 975,156.25/660
  6. Step 6: Final answer
    x = 1,477.51

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.