Home / 291,986-630,580

Finding the Third Proportional to 291,986 and 630,580

Calculator

Solution

The third proportional to 291,986 and 630,580 is: 1,361,815.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,986 : 630,580 = 630,580 : x
  2. Step 2: Convert to fraction form
    291,986/630,580 = 630,580/x
  3. Step 3: Cross multiply
    291,986x = 630,580 × 630,580
  4. Step 4: Simplify right side
    291,986x = 397,631,136,400
  5. Step 5: Solve for x
    x = 397,631,136,400/291,986
  6. Step 6: Final answer
    x = 1,361,815.76

Related Problems

Find third proportional to 145,993 and 315,290
Half scale
Find third proportional to 583,972 and 1,261,160
Double scale
Find third proportional to 291,988 and 630,584
Similar ratio
Find third proportional to 437,979 and 945,870
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.