Home / 406,944-630,864

Finding the Third Proportional to 406,944 and 630,864

Calculator

Solution

The third proportional to 406,944 and 630,864 is: 977,995.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,944 : 630,864 = 630,864 : x
  2. Step 2: Convert to fraction form
    406,944/630,864 = 630,864/x
  3. Step 3: Cross multiply
    406,944x = 630,864 × 630,864
  4. Step 4: Simplify right side
    406,944x = 397,989,386,496
  5. Step 5: Solve for x
    x = 397,989,386,496/406,944
  6. Step 6: Final answer
    x = 977,995.46

Related Problems

Find third proportional to 203,472 and 315,432
Half scale
Find third proportional to 813,888 and 1,261,728
Double scale
Find third proportional to 406,946 and 630,867
Similar ratio
Find third proportional to 610,416 and 946,296
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.