Home / 728,080.94-1,092,154.19-278,685.25

Finding the Fourth Proportional to 728,080.94, 1,092,154.19 and 278,685.25

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Solution

The fourth proportional to 728,080.94, 1,092,154.19 and 278,685.25 is: 418,040.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,080.94 : 1,092,154.19 = 278,685.25 : x
  2. Step 2: Convert to fraction form
    728,080.94/1,092,154.19 = 278,685.25/x
  3. Step 3: Cross multiply
    728,080.94x = 1,092,154.19 × 278,685.25
  4. Step 4: Simplify right side
    728,080.94x = 304,367,259,354.89
  5. Step 5: Solve for x
    x = 304,367,259,354.89/728,080.94
  6. Step 6: Final answer
    x = 418,040.41

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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.