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Finding the Fourth Proportional to 557,877, 769,867.38 and 303,229.56

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Solution

The fourth proportional to 557,877, 769,867.38 and 303,229.56 is: 418,455.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,877 : 769,867.38 = 303,229.56 : x
  2. Step 2: Convert to fraction form
    557,877/769,867.38 = 303,229.56/x
  3. Step 3: Cross multiply
    557,877x = 769,867.38 × 303,229.56
  4. Step 4: Simplify right side
    557,877x = 233,446,546,895.75
  5. Step 5: Solve for x
    x = 233,446,546,895.75/557,877
  6. Step 6: Final answer
    x = 418,455.23

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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.