Home / 681,398.88-940,295.88-395,012.40

Finding the Fourth Proportional to 681,398.88, 940,295.88 and 395,012.40

Calculator

Solution

The fourth proportional to 681,398.88, 940,295.88 and 395,012.40 is: 545,097.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,398.88 : 940,295.88 = 395,012.40 : x
  2. Step 2: Convert to fraction form
    681,398.88/940,295.88 = 395,012.40/x
  3. Step 3: Cross multiply
    681,398.88x = 940,295.88 × 395,012.40
  4. Step 4: Simplify right side
    681,398.88x = 371,428,532,268.91
  5. Step 5: Solve for x
    x = 371,428,532,268.91/681,398.88
  6. Step 6: Final answer
    x = 545,097.07

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.