Home / 449.50-691

Finding the Third Proportional to 449.50 and 691

Calculator

Solution

The third proportional to 449.50 and 691 is: 1,062.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.50 : 691 = 691 : x
  2. Step 2: Convert to fraction form
    449.50/691 = 691/x
  3. Step 3: Cross multiply
    449.50x = 691 × 691
  4. Step 4: Simplify right side
    449.50x = 477,481
  5. Step 5: Solve for x
    x = 477,481/449.50
  6. Step 6: Final answer
    x = 1,062.25

Related Problems

Find third proportional to 224.75 and 345.50
Half scale
Find third proportional to 899 and 1,382
Double scale
Find third proportional to 452 and 694
Similar ratio
Find third proportional to 674.25 and 1,036.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.