Home / 573-720

Finding the Third Proportional to 573 and 720

Calculator

Solution

The third proportional to 573 and 720 is: 904.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    573 : 720 = 720 : x
  2. Step 2: Convert to fraction form
    573/720 = 720/x
  3. Step 3: Cross multiply
    573x = 720 × 720
  4. Step 4: Simplify right side
    573x = 518,400
  5. Step 5: Solve for x
    x = 518,400/573
  6. Step 6: Final answer
    x = 904.71

Related Problems

Find third proportional to 286.50 and 360
Half scale
Find third proportional to 1,146 and 1,440
Double scale
Find third proportional to 575 and 723
Similar ratio
Find third proportional to 859.50 and 1,080
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.