Home / 661.50-988.88

Finding the Third Proportional to 661.50 and 988.88

Calculator

Solution

The third proportional to 661.50 and 988.88 is: 1,478.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    661.50 : 988.88 = 988.88 : x
  2. Step 2: Convert to fraction form
    661.50/988.88 = 988.88/x
  3. Step 3: Cross multiply
    661.50x = 988.88 × 988.88
  4. Step 4: Simplify right side
    661.50x = 977,873.77
  5. Step 5: Solve for x
    x = 977,873.77/661.50
  6. Step 6: Final answer
    x = 1,478.27

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.