Home / 763-1,005

Finding the Third Proportional to 763 and 1,005

Calculator

Solution

The third proportional to 763 and 1,005 is: 1,323.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    763 : 1,005 = 1,005 : x
  2. Step 2: Convert to fraction form
    763/1,005 = 1,005/x
  3. Step 3: Cross multiply
    763x = 1,005 × 1,005
  4. Step 4: Simplify right side
    763x = 1,010,025
  5. Step 5: Solve for x
    x = 1,010,025/763
  6. Step 6: Final answer
    x = 1,323.75

Related Problems

Find third proportional to 381.50 and 502.50
Half scale
Find third proportional to 1,526 and 2,010
Double scale
Find third proportional to 765 and 1,008
Similar ratio
Find third proportional to 1,144.50 and 1,507.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.