Home / 284,130-431,378

Finding the Third Proportional to 284,130 and 431,378

Calculator

Solution

The third proportional to 284,130 and 431,378 is: 654,936.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,130 : 431,378 = 431,378 : x
  2. Step 2: Convert to fraction form
    284,130/431,378 = 431,378/x
  3. Step 3: Cross multiply
    284,130x = 431,378 × 431,378
  4. Step 4: Simplify right side
    284,130x = 186,086,978,884
  5. Step 5: Solve for x
    x = 186,086,978,884/284,130
  6. Step 6: Final answer
    x = 654,936.05

Related Problems

Find third proportional to 142,065 and 215,689
Half scale
Find third proportional to 568,260 and 862,756
Double scale
Find third proportional to 284,132 and 431,381
Similar ratio
Find third proportional to 426,195 and 647,067
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.