Home / 499,580-677,198

Finding the Third Proportional to 499,580 and 677,198

Calculator

Solution

The third proportional to 499,580 and 677,198 is: 917,965.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,580 : 677,198 = 677,198 : x
  2. Step 2: Convert to fraction form
    499,580/677,198 = 677,198/x
  3. Step 3: Cross multiply
    499,580x = 677,198 × 677,198
  4. Step 4: Simplify right side
    499,580x = 458,597,131,204
  5. Step 5: Solve for x
    x = 458,597,131,204/499,580
  6. Step 6: Final answer
    x = 917,965.35

Related Problems

Find third proportional to 249,790 and 338,599
Half scale
Find third proportional to 999,160 and 1,354,396
Double scale
Find third proportional to 499,582 and 677,201
Similar ratio
Find third proportional to 749,370 and 1,015,797
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.