Home / 331,416-518,449.50

Finding the Third Proportional to 331,416 and 518,449.50

Calculator

Solution

The third proportional to 331,416 and 518,449.50 is: 811,034.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,416 : 518,449.50 = 518,449.50 : x
  2. Step 2: Convert to fraction form
    331,416/518,449.50 = 518,449.50/x
  3. Step 3: Cross multiply
    331,416x = 518,449.50 × 518,449.50
  4. Step 4: Simplify right side
    331,416x = 268,789,884,050.25
  5. Step 5: Solve for x
    x = 268,789,884,050.25/331,416
  6. Step 6: Final answer
    x = 811,034.72

Related Problems

Find third proportional to 165,708 and 259,224.75
Half scale
Find third proportional to 662,832 and 1,036,899
Double scale
Find third proportional to 331,418 and 518,453
Similar ratio
Find third proportional to 497,124 and 777,674.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.