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Finding the Fourth Proportional to 557,885.44, 769,879.02 and 303,238

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Solution

The fourth proportional to 557,885.44, 769,879.02 and 303,238 is: 418,466.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,885.44 : 769,879.02 = 303,238 : x
  2. Step 2: Convert to fraction form
    557,885.44/769,879.02 = 303,238/x
  3. Step 3: Cross multiply
    557,885.44x = 769,879.02 × 303,238
  4. Step 4: Simplify right side
    557,885.44x = 233,456,574,266.76
  5. Step 5: Solve for x
    x = 233,456,574,266.76/557,885.44
  6. Step 6: Final answer
    x = 418,466.87

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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.