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Finding the Fourth Proportional to 557,884, 769,880.82 and 303,234.58

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Solution

The fourth proportional to 557,884, 769,880.82 and 303,234.58 is: 418,464.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,884 : 769,880.82 = 303,234.58 : x
  2. Step 2: Convert to fraction form
    557,884/769,880.82 = 303,234.58/x
  3. Step 3: Cross multiply
    557,884x = 769,880.82 × 303,234.58
  4. Step 4: Simplify right side
    557,884x = 233,454,487,102.76
  5. Step 5: Solve for x
    x = 233,454,487,102.76/557,884
  6. Step 6: Final answer
    x = 418,464.21

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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.