Home / 399,072-472,884

Finding the Third Proportional to 399,072 and 472,884

Calculator

Solution

The third proportional to 399,072 and 472,884 is: 560,348.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,072 : 472,884 = 472,884 : x
  2. Step 2: Convert to fraction form
    399,072/472,884 = 472,884/x
  3. Step 3: Cross multiply
    399,072x = 472,884 × 472,884
  4. Step 4: Simplify right side
    399,072x = 223,619,277,456
  5. Step 5: Solve for x
    x = 223,619,277,456/399,072
  6. Step 6: Final answer
    x = 560,348.20

Related Problems

Find third proportional to 199,536 and 236,442
Half scale
Find third proportional to 798,144 and 945,768
Double scale
Find third proportional to 399,074 and 472,886
Similar ratio
Find third proportional to 598,608 and 709,326
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.