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Finding the Fourth Proportional to 617,125.02, 925,354.69 and 279,981.71

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Solution

The fourth proportional to 617,125.02, 925,354.69 and 279,981.71 is: 419,821.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,125.02 : 925,354.69 = 279,981.71 : x
  2. Step 2: Convert to fraction form
    617,125.02/925,354.69 = 279,981.71/x
  3. Step 3: Cross multiply
    617,125.02x = 925,354.69 × 279,981.71
  4. Step 4: Simplify right side
    617,125.02x = 259,082,388,462.72
  5. Step 5: Solve for x
    x = 259,082,388,462.72/617,125.02
  6. Step 6: Final answer
    x = 419,821.56

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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.