Home / 573-641

Finding the Third Proportional to 573 and 641

Calculator

Solution

The third proportional to 573 and 641 is: 717.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    573 : 641 = 641 : x
  2. Step 2: Convert to fraction form
    573/641 = 641/x
  3. Step 3: Cross multiply
    573x = 641 × 641
  4. Step 4: Simplify right side
    573x = 410,881
  5. Step 5: Solve for x
    x = 410,881/573
  6. Step 6: Final answer
    x = 717.07

Related Problems

Find third proportional to 286.50 and 320.50
Half scale
Find third proportional to 1,146 and 1,282
Double scale
Find third proportional to 575 and 643
Similar ratio
Find third proportional to 859.50 and 961.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.