Home / 406,620-609,930

Finding the Third Proportional to 406,620 and 609,930

Calculator

Solution

The third proportional to 406,620 and 609,930 is: 914,895

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,620 : 609,930 = 609,930 : x
  2. Step 2: Convert to fraction form
    406,620/609,930 = 609,930/x
  3. Step 3: Cross multiply
    406,620x = 609,930 × 609,930
  4. Step 4: Simplify right side
    406,620x = 372,014,604,900
  5. Step 5: Solve for x
    x = 372,014,604,900/406,620
  6. Step 6: Final answer
    x = 914,895

Related Problems

Find third proportional to 203,310 and 304,965
Half scale
Find third proportional to 813,240 and 1,219,860
Double scale
Find third proportional to 406,622 and 609,933
Similar ratio
Find third proportional to 609,930 and 914,895
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.