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Finding the Fourth Proportional to 379,504.62, 568,796.52 and 278,730.32

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Solution

The fourth proportional to 379,504.62, 568,796.52 and 278,730.32 is: 417,757.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,504.62 : 568,796.52 = 278,730.32 : x
  2. Step 2: Convert to fraction form
    379,504.62/568,796.52 = 278,730.32/x
  3. Step 3: Cross multiply
    379,504.62x = 568,796.52 × 278,730.32
  4. Step 4: Simplify right side
    379,504.62x = 158,540,833,190.50
  5. Step 5: Solve for x
    x = 158,540,833,190.50/379,504.62
  6. Step 6: Final answer
    x = 417,757.32

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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.