Home / 420,232-630,778

Finding the Third Proportional to 420,232 and 630,778

Calculator

Solution

The third proportional to 420,232 and 630,778 is: 946,812.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,232 : 630,778 = 630,778 : x
  2. Step 2: Convert to fraction form
    420,232/630,778 = 630,778/x
  3. Step 3: Cross multiply
    420,232x = 630,778 × 630,778
  4. Step 4: Simplify right side
    420,232x = 397,880,885,284
  5. Step 5: Solve for x
    x = 397,880,885,284/420,232
  6. Step 6: Final answer
    x = 946,812.44

Related Problems

Find third proportional to 210,116 and 315,389
Half scale
Find third proportional to 840,464 and 1,261,556
Double scale
Find third proportional to 420,234 and 630,781
Similar ratio
Find third proportional to 630,348 and 946,167
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.