Home / 385,262-511,336

Finding the Third Proportional to 385,262 and 511,336

Calculator

Solution

The third proportional to 385,262 and 511,336 is: 678,666.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,262 : 511,336 = 511,336 : x
  2. Step 2: Convert to fraction form
    385,262/511,336 = 511,336/x
  3. Step 3: Cross multiply
    385,262x = 511,336 × 511,336
  4. Step 4: Simplify right side
    385,262x = 261,464,504,896
  5. Step 5: Solve for x
    x = 261,464,504,896/385,262
  6. Step 6: Final answer
    x = 678,666.74

Related Problems

Find third proportional to 192,631 and 255,668
Half scale
Find third proportional to 770,524 and 1,022,672
Double scale
Find third proportional to 385,264 and 511,339
Similar ratio
Find third proportional to 577,893 and 767,004
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.