Home / 431,296-664,800

Finding the Third Proportional to 431,296 and 664,800

Calculator

Solution

The third proportional to 431,296 and 664,800 is: 1,024,723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,296 : 664,800 = 664,800 : x
  2. Step 2: Convert to fraction form
    431,296/664,800 = 664,800/x
  3. Step 3: Cross multiply
    431,296x = 664,800 × 664,800
  4. Step 4: Simplify right side
    431,296x = 441,959,040,000
  5. Step 5: Solve for x
    x = 441,959,040,000/431,296
  6. Step 6: Final answer
    x = 1,024,723.25

Related Problems

Find third proportional to 215,648 and 332,400
Half scale
Find third proportional to 862,592 and 1,329,600
Double scale
Find third proportional to 431,298 and 664,803
Similar ratio
Find third proportional to 646,944 and 997,200
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.