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Finding the Fourth Proportional to 383,857.47, 529,449.08 and 332,778.87

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Solution

The fourth proportional to 383,857.47, 529,449.08 and 332,778.87 is: 458,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,857.47 : 529,449.08 = 332,778.87 : x
  2. Step 2: Convert to fraction form
    383,857.47/529,449.08 = 332,778.87/x
  3. Step 3: Cross multiply
    383,857.47x = 529,449.08 × 332,778.87
  4. Step 4: Simplify right side
    383,857.47x = 176,189,464,901.05
  5. Step 5: Solve for x
    x = 176,189,464,901.05/383,857.47
  6. Step 6: Final answer
    x = 458,997.10

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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.