Home / 629.50-700

Finding the Third Proportional to 629.50 and 700

Calculator

Solution

The third proportional to 629.50 and 700 is: 778.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.50 : 700 = 700 : x
  2. Step 2: Convert to fraction form
    629.50/700 = 700/x
  3. Step 3: Cross multiply
    629.50x = 700 × 700
  4. Step 4: Simplify right side
    629.50x = 490,000
  5. Step 5: Solve for x
    x = 490,000/629.50
  6. Step 6: Final answer
    x = 778.40

Related Problems

Find third proportional to 314.75 and 350
Half scale
Find third proportional to 1,259 and 1,400
Double scale
Find third proportional to 632 and 702
Similar ratio
Find third proportional to 944.25 and 1,050
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.