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Finding the Fourth Proportional to 557,881.92, 769,872.78 and 303,234.90

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Solution

The fourth proportional to 557,881.92, 769,872.78 and 303,234.90 is: 418,461.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,881.92 : 769,872.78 = 303,234.90 : x
  2. Step 2: Convert to fraction form
    557,881.92/769,872.78 = 303,234.90/x
  3. Step 3: Cross multiply
    557,881.92x = 769,872.78 × 303,234.90
  4. Step 4: Simplify right side
    557,881.92x = 233,452,295,456.02
  5. Step 5: Solve for x
    x = 233,452,295,456.02/557,881.92
  6. Step 6: Final answer
    x = 418,461.84

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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.