Home / 581.75-629.75

Finding the Third Proportional to 581.75 and 629.75

Calculator

Solution

The third proportional to 581.75 and 629.75 is: 681.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.75 : 629.75 = 629.75 : x
  2. Step 2: Convert to fraction form
    581.75/629.75 = 629.75/x
  3. Step 3: Cross multiply
    581.75x = 629.75 × 629.75
  4. Step 4: Simplify right side
    581.75x = 396,585.06
  5. Step 5: Solve for x
    x = 396,585.06/581.75
  6. Step 6: Final answer
    x = 681.71

Related Problems

Find third proportional to 290.88 and 314.88
Half scale
Find third proportional to 1,163.50 and 1,259.50
Double scale
Find third proportional to 584 and 632
Similar ratio
Find third proportional to 872.63 and 944.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.