Home / 310,930-659,226

Finding the Third Proportional to 310,930 and 659,226

Calculator

Solution

The third proportional to 310,930 and 659,226 is: 1,397,674.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,930 : 659,226 = 659,226 : x
  2. Step 2: Convert to fraction form
    310,930/659,226 = 659,226/x
  3. Step 3: Cross multiply
    310,930x = 659,226 × 659,226
  4. Step 4: Simplify right side
    310,930x = 434,578,919,076
  5. Step 5: Solve for x
    x = 434,578,919,076/310,930
  6. Step 6: Final answer
    x = 1,397,674.46

Related Problems

Find third proportional to 155,465 and 329,613
Half scale
Find third proportional to 621,860 and 1,318,452
Double scale
Find third proportional to 310,932 and 659,230
Similar ratio
Find third proportional to 466,395 and 988,839
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.