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Finding the Fourth Proportional to 557,874.37, 769,850.44 and 316,179.28

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Solution

The fourth proportional to 557,874.37, 769,850.44 and 316,179.28 is: 436,318.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,874.37 : 769,850.44 = 316,179.28 : x
  2. Step 2: Convert to fraction form
    557,874.37/769,850.44 = 316,179.28/x
  3. Step 3: Cross multiply
    557,874.37x = 769,850.44 × 316,179.28
  4. Step 4: Simplify right side
    557,874.37x = 243,410,757,826.88
  5. Step 5: Solve for x
    x = 243,410,757,826.88/557,874.37
  6. Step 6: Final answer
    x = 436,318.23

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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.