Home / 454.75-664.50

Finding the Third Proportional to 454.75 and 664.50

Calculator

Solution

The third proportional to 454.75 and 664.50 is: 971.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.75 : 664.50 = 664.50 : x
  2. Step 2: Convert to fraction form
    454.75/664.50 = 664.50/x
  3. Step 3: Cross multiply
    454.75x = 664.50 × 664.50
  4. Step 4: Simplify right side
    454.75x = 441,560.25
  5. Step 5: Solve for x
    x = 441,560.25/454.75
  6. Step 6: Final answer
    x = 971.00

Related Problems

Find third proportional to 227.38 and 332.25
Half scale
Find third proportional to 909.50 and 1,329
Double scale
Find third proportional to 457 and 667
Similar ratio
Find third proportional to 682.13 and 996.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.