Home / 415,008-630,720

Finding the Third Proportional to 415,008 and 630,720

Calculator

Solution

The third proportional to 415,008 and 630,720 is: 958,554.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,008 : 630,720 = 630,720 : x
  2. Step 2: Convert to fraction form
    415,008/630,720 = 630,720/x
  3. Step 3: Cross multiply
    415,008x = 630,720 × 630,720
  4. Step 4: Simplify right side
    415,008x = 397,807,718,400
  5. Step 5: Solve for x
    x = 397,807,718,400/415,008
  6. Step 6: Final answer
    x = 958,554.34

Related Problems

Find third proportional to 207,504 and 315,360
Half scale
Find third proportional to 830,016 and 1,261,440
Double scale
Find third proportional to 415,010 and 630,723
Similar ratio
Find third proportional to 622,512 and 946,080
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.