Home / 630,438-1,368,039

Finding the Third Proportional to 630,438 and 1,368,039

Calculator

Solution

The third proportional to 630,438 and 1,368,039 is: 2,968,619.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,438 : 1,368,039 = 1,368,039 : x
  2. Step 2: Convert to fraction form
    630,438/1,368,039 = 1,368,039/x
  3. Step 3: Cross multiply
    630,438x = 1,368,039 × 1,368,039
  4. Step 4: Simplify right side
    630,438x = 1,871,530,705,521
  5. Step 5: Solve for x
    x = 1,871,530,705,521/630,438
  6. Step 6: Final answer
    x = 2,968,619.76

Related Problems

Find third proportional to 315,219 and 684,019.50
Half scale
Find third proportional to 1,260,876 and 2,736,078
Double scale
Find third proportional to 630,440 and 1,368,043
Similar ratio
Find third proportional to 945,657 and 2,052,058.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.