Home / 518,962-663,126

Finding the Third Proportional to 518,962 and 663,126

Calculator

Solution

The third proportional to 518,962 and 663,126 is: 847,337.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,962 : 663,126 = 663,126 : x
  2. Step 2: Convert to fraction form
    518,962/663,126 = 663,126/x
  3. Step 3: Cross multiply
    518,962x = 663,126 × 663,126
  4. Step 4: Simplify right side
    518,962x = 439,736,091,876
  5. Step 5: Solve for x
    x = 439,736,091,876/518,962
  6. Step 6: Final answer
    x = 847,337.75

Related Problems

Find third proportional to 259,481 and 331,563
Half scale
Find third proportional to 1,037,924 and 1,326,252
Double scale
Find third proportional to 518,964 and 663,129
Similar ratio
Find third proportional to 778,443 and 994,689
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.