Home / 625.75-693.75

Finding the Third Proportional to 625.75 and 693.75

Calculator

Solution

The third proportional to 625.75 and 693.75 is: 769.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.75 : 693.75 = 693.75 : x
  2. Step 2: Convert to fraction form
    625.75/693.75 = 693.75/x
  3. Step 3: Cross multiply
    625.75x = 693.75 × 693.75
  4. Step 4: Simplify right side
    625.75x = 481,289.06
  5. Step 5: Solve for x
    x = 481,289.06/625.75
  6. Step 6: Final answer
    x = 769.14

Related Problems

Find third proportional to 312.88 and 346.88
Half scale
Find third proportional to 1,251.50 and 1,387.50
Double scale
Find third proportional to 628 and 696
Similar ratio
Find third proportional to 938.63 and 1,040.63
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.