Home / 385,260-511,332

Finding the Third Proportional to 385,260 and 511,332

Calculator

Solution

The third proportional to 385,260 and 511,332 is: 678,659.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,260 : 511,332 = 511,332 : x
  2. Step 2: Convert to fraction form
    385,260/511,332 = 511,332/x
  3. Step 3: Cross multiply
    385,260x = 511,332 × 511,332
  4. Step 4: Simplify right side
    385,260x = 261,460,414,224
  5. Step 5: Solve for x
    x = 261,460,414,224/385,260
  6. Step 6: Final answer
    x = 678,659.64

Related Problems

Find third proportional to 192,630 and 255,666
Half scale
Find third proportional to 770,520 and 1,022,664
Double scale
Find third proportional to 385,262 and 511,335
Similar ratio
Find third proportional to 577,890 and 766,998
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.