Home / 445.50-698.63

Finding the Third Proportional to 445.50 and 698.63

Calculator

Solution

The third proportional to 445.50 and 698.63 is: 1,095.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.50 : 698.63 = 698.63 : x
  2. Step 2: Convert to fraction form
    445.50/698.63 = 698.63/x
  3. Step 3: Cross multiply
    445.50x = 698.63 × 698.63
  4. Step 4: Simplify right side
    445.50x = 488,076.89
  5. Step 5: Solve for x
    x = 488,076.89/445.50
  6. Step 6: Final answer
    x = 1,095.57

Related Problems

Find third proportional to 222.75 and 349.31
Half scale
Find third proportional to 891 and 1,397.25
Double scale
Find third proportional to 448 and 702
Similar ratio
Find third proportional to 668.25 and 1,047.94
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.