Home / 403,515-565,515

Finding the Third Proportional to 403,515 and 565,515

Calculator

Solution

The third proportional to 403,515 and 565,515 is: 792,553.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,515 : 565,515 = 565,515 : x
  2. Step 2: Convert to fraction form
    403,515/565,515 = 565,515/x
  3. Step 3: Cross multiply
    403,515x = 565,515 × 565,515
  4. Step 4: Simplify right side
    403,515x = 319,807,215,225
  5. Step 5: Solve for x
    x = 319,807,215,225/403,515
  6. Step 6: Final answer
    x = 792,553.47

Related Problems

Find third proportional to 201,757.50 and 282,757.50
Half scale
Find third proportional to 807,030 and 1,131,030
Double scale
Find third proportional to 403,517 and 565,518
Similar ratio
Find third proportional to 605,272.50 and 848,272.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.