Home / 645,986-991,580

Finding the Third Proportional to 645,986 and 991,580

Calculator

Solution

The third proportional to 645,986 and 991,580 is: 1,522,062.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,986 : 991,580 = 991,580 : x
  2. Step 2: Convert to fraction form
    645,986/991,580 = 991,580/x
  3. Step 3: Cross multiply
    645,986x = 991,580 × 991,580
  4. Step 4: Simplify right side
    645,986x = 983,230,896,400
  5. Step 5: Solve for x
    x = 983,230,896,400/645,986
  6. Step 6: Final answer
    x = 1,522,062.24

Related Problems

Find third proportional to 322,993 and 495,790
Half scale
Find third proportional to 1,291,972 and 1,983,160
Double scale
Find third proportional to 645,988 and 991,583
Similar ratio
Find third proportional to 968,979 and 1,487,370
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.