Home / 291,916-630,488

Finding the Third Proportional to 291,916 and 630,488

Calculator

Solution

The third proportional to 291,916 and 630,488 is: 1,361,744.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,916 : 630,488 = 630,488 : x
  2. Step 2: Convert to fraction form
    291,916/630,488 = 630,488/x
  3. Step 3: Cross multiply
    291,916x = 630,488 × 630,488
  4. Step 4: Simplify right side
    291,916x = 397,515,118,144
  5. Step 5: Solve for x
    x = 397,515,118,144/291,916
  6. Step 6: Final answer
    x = 1,361,744.88

Related Problems

Find third proportional to 145,958 and 315,244
Half scale
Find third proportional to 583,832 and 1,260,976
Double scale
Find third proportional to 291,918 and 630,492
Similar ratio
Find third proportional to 437,874 and 945,732
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.