Home / 650.50-989

Finding the Third Proportional to 650.50 and 989

Calculator

Solution

The third proportional to 650.50 and 989 is: 1,503.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.50 : 989 = 989 : x
  2. Step 2: Convert to fraction form
    650.50/989 = 989/x
  3. Step 3: Cross multiply
    650.50x = 989 × 989
  4. Step 4: Simplify right side
    650.50x = 978,121
  5. Step 5: Solve for x
    x = 978,121/650.50
  6. Step 6: Final answer
    x = 1,503.64

Related Problems

Find third proportional to 325.25 and 494.50
Half scale
Find third proportional to 1,301 and 1,978
Double scale
Find third proportional to 653 and 992
Similar ratio
Find third proportional to 975.75 and 1,483.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.