Home / 649-907

Finding the Third Proportional to 649 and 907

Calculator

Solution

The third proportional to 649 and 907 is: 1,267.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    649 : 907 = 907 : x
  2. Step 2: Convert to fraction form
    649/907 = 907/x
  3. Step 3: Cross multiply
    649x = 907 × 907
  4. Step 4: Simplify right side
    649x = 822,649
  5. Step 5: Solve for x
    x = 822,649/649
  6. Step 6: Final answer
    x = 1,267.56

Related Problems

Find third proportional to 324.50 and 453.50
Half scale
Find third proportional to 1,298 and 1,814
Double scale
Find third proportional to 651 and 910
Similar ratio
Find third proportional to 973.50 and 1,360.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.