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Finding the Fourth Proportional to 471,129.76, 704,911.29 and 279,107.27

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Solution

The fourth proportional to 471,129.76, 704,911.29 and 279,107.27 is: 417,604.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,129.76 : 704,911.29 = 279,107.27 : x
  2. Step 2: Convert to fraction form
    471,129.76/704,911.29 = 279,107.27/x
  3. Step 3: Cross multiply
    471,129.76x = 704,911.29 × 279,107.27
  4. Step 4: Simplify right side
    471,129.76x = 196,745,866,702.38
  5. Step 5: Solve for x
    x = 196,745,866,702.38/471,129.76
  6. Step 6: Final answer
    x = 417,604.41

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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.