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Finding the Fourth Proportional to 449,442.24, 619,146.24 and 384,704.88

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Solution

The fourth proportional to 449,442.24, 619,146.24 and 384,704.88 is: 529,964.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,442.24 : 619,146.24 = 384,704.88 : x
  2. Step 2: Convert to fraction form
    449,442.24/619,146.24 = 384,704.88/x
  3. Step 3: Cross multiply
    449,442.24x = 619,146.24 × 384,704.88
  4. Step 4: Simplify right side
    449,442.24x = 238,188,579,961.65
  5. Step 5: Solve for x
    x = 238,188,579,961.65/449,442.24
  6. Step 6: Final answer
    x = 529,964.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.