Home / 778,268.89-1,073,964.79-451,556.59

Finding the Fourth Proportional to 778,268.89, 1,073,964.79 and 451,556.59

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Solution

The fourth proportional to 778,268.89, 1,073,964.79 and 451,556.59 is: 623,121.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,268.89 : 1,073,964.79 = 451,556.59 : x
  2. Step 2: Convert to fraction form
    778,268.89/1,073,964.79 = 451,556.59/x
  3. Step 3: Cross multiply
    778,268.89x = 1,073,964.79 × 451,556.59
  4. Step 4: Simplify right side
    778,268.89x = 484,955,878,352.47
  5. Step 5: Solve for x
    x = 484,955,878,352.47/778,268.89
  6. Step 6: Final answer
    x = 623,121.24

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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.