Home / 455.50-911

Finding the Third Proportional to 455.50 and 911

Calculator

Solution

The third proportional to 455.50 and 911 is: 1,822

Step by Step Solution

  1. Step 1: Write the proportion equation
    455.50 : 911 = 911 : x
  2. Step 2: Convert to fraction form
    455.50/911 = 911/x
  3. Step 3: Cross multiply
    455.50x = 911 × 911
  4. Step 4: Simplify right side
    455.50x = 829,921
  5. Step 5: Solve for x
    x = 829,921/455.50
  6. Step 6: Final answer
    x = 1,822

Related Problems

Find third proportional to 227.75 and 455.50
Half scale
Find third proportional to 911 and 1,822
Double scale
Find third proportional to 458 and 915
Similar ratio
Find third proportional to 683.25 and 1,366.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.