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Finding the Fourth Proportional to 359,747.93, 539,578.92 and 279,865.63

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Solution

The fourth proportional to 359,747.93, 539,578.92 and 279,865.63 is: 419,765.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,747.93 : 539,578.92 = 279,865.63 : x
  2. Step 2: Convert to fraction form
    359,747.93/539,578.92 = 279,865.63/x
  3. Step 3: Cross multiply
    359,747.93x = 539,578.92 × 279,865.63
  4. Step 4: Simplify right side
    359,747.93x = 151,009,594,530.25
  5. Step 5: Solve for x
    x = 151,009,594,530.25/359,747.93
  6. Step 6: Final answer
    x = 419,765.01

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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.