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Finding the Fourth Proportional to 498,183.64, 687,508.56 and 283,354.60

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Solution

The fourth proportional to 498,183.64, 687,508.56 and 283,354.60 is: 391,037.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,183.64 : 687,508.56 = 283,354.60 : x
  2. Step 2: Convert to fraction form
    498,183.64/687,508.56 = 283,354.60/x
  3. Step 3: Cross multiply
    498,183.64x = 687,508.56 × 283,354.60
  4. Step 4: Simplify right side
    498,183.64x = 194,808,713,015.38
  5. Step 5: Solve for x
    x = 194,808,713,015.38/498,183.64
  6. Step 6: Final answer
    x = 391,037.96

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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.