Home / 383,978-540,488

Finding the Third Proportional to 383,978 and 540,488

Calculator

Solution

The third proportional to 383,978 and 540,488 is: 760,791.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,978 : 540,488 = 540,488 : x
  2. Step 2: Convert to fraction form
    383,978/540,488 = 540,488/x
  3. Step 3: Cross multiply
    383,978x = 540,488 × 540,488
  4. Step 4: Simplify right side
    383,978x = 292,127,278,144
  5. Step 5: Solve for x
    x = 292,127,278,144/383,978
  6. Step 6: Final answer
    x = 760,791.71

Related Problems

Find third proportional to 191,989 and 270,244
Half scale
Find third proportional to 767,956 and 1,080,976
Double scale
Find third proportional to 383,980 and 540,491
Similar ratio
Find third proportional to 575,967 and 810,732
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.