Home / 536.50-620.50

Finding the Third Proportional to 536.50 and 620.50

Calculator

Solution

The third proportional to 536.50 and 620.50 is: 717.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.50 : 620.50 = 620.50 : x
  2. Step 2: Convert to fraction form
    536.50/620.50 = 620.50/x
  3. Step 3: Cross multiply
    536.50x = 620.50 × 620.50
  4. Step 4: Simplify right side
    536.50x = 385,020.25
  5. Step 5: Solve for x
    x = 385,020.25/536.50
  6. Step 6: Final answer
    x = 717.65

Related Problems

Find third proportional to 268.25 and 310.25
Half scale
Find third proportional to 1,073 and 1,241
Double scale
Find third proportional to 539 and 623
Similar ratio
Find third proportional to 804.75 and 930.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.