Home / 486,512-729,040

Finding the Third Proportional to 486,512 and 729,040

Calculator

Solution

The third proportional to 486,512 and 729,040 is: 1,092,469.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,512 : 729,040 = 729,040 : x
  2. Step 2: Convert to fraction form
    486,512/729,040 = 729,040/x
  3. Step 3: Cross multiply
    486,512x = 729,040 × 729,040
  4. Step 4: Simplify right side
    486,512x = 531,499,321,600
  5. Step 5: Solve for x
    x = 531,499,321,600/486,512
  6. Step 6: Final answer
    x = 1,092,469.09

Related Problems

Find third proportional to 243,256 and 364,520
Half scale
Find third proportional to 973,024 and 1,458,080
Double scale
Find third proportional to 486,514 and 729,043
Similar ratio
Find third proportional to 729,768 and 1,093,560
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.