Home / 339,568-517,128

Finding the Third Proportional to 339,568 and 517,128

Calculator

Solution

The third proportional to 339,568 and 517,128 is: 787,534.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,568 : 517,128 = 517,128 : x
  2. Step 2: Convert to fraction form
    339,568/517,128 = 517,128/x
  3. Step 3: Cross multiply
    339,568x = 517,128 × 517,128
  4. Step 4: Simplify right side
    339,568x = 267,421,368,384
  5. Step 5: Solve for x
    x = 267,421,368,384/339,568
  6. Step 6: Final answer
    x = 787,534.07

Related Problems

Find third proportional to 169,784 and 258,564
Half scale
Find third proportional to 679,136 and 1,034,256
Double scale
Find third proportional to 339,570 and 517,131
Similar ratio
Find third proportional to 509,352 and 775,692
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.