Home / 512,396-818,564

Finding the Third Proportional to 512,396 and 818,564

Calculator

Solution

The third proportional to 512,396 and 818,564 is: 1,307,674.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,396 : 818,564 = 818,564 : x
  2. Step 2: Convert to fraction form
    512,396/818,564 = 818,564/x
  3. Step 3: Cross multiply
    512,396x = 818,564 × 818,564
  4. Step 4: Simplify right side
    512,396x = 670,047,022,096
  5. Step 5: Solve for x
    x = 670,047,022,096/512,396
  6. Step 6: Final answer
    x = 1,307,674.19

Related Problems

Find third proportional to 256,198 and 409,282
Half scale
Find third proportional to 1,024,792 and 1,637,128
Double scale
Find third proportional to 512,398 and 818,567
Similar ratio
Find third proportional to 768,594 and 1,227,846
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.