Home / 436,421-677,331

Finding the Third Proportional to 436,421 and 677,331

Calculator

Solution

The third proportional to 436,421 and 677,331 is: 1,051,226.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,421 : 677,331 = 677,331 : x
  2. Step 2: Convert to fraction form
    436,421/677,331 = 677,331/x
  3. Step 3: Cross multiply
    436,421x = 677,331 × 677,331
  4. Step 4: Simplify right side
    436,421x = 458,777,283,561
  5. Step 5: Solve for x
    x = 458,777,283,561/436,421
  6. Step 6: Final answer
    x = 1,051,226.42

Related Problems

Find third proportional to 218,210.50 and 338,665.50
Half scale
Find third proportional to 872,842 and 1,354,662
Double scale
Find third proportional to 436,423 and 677,334
Similar ratio
Find third proportional to 654,631.50 and 1,015,996.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.