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Finding the Fourth Proportional to 473,286.72, 653,134.92 and 303,520.56

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Solution

The fourth proportional to 473,286.72, 653,134.92 and 303,520.56 is: 418,857.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,286.72 : 653,134.92 = 303,520.56 : x
  2. Step 2: Convert to fraction form
    473,286.72/653,134.92 = 303,520.56/x
  3. Step 3: Cross multiply
    473,286.72x = 653,134.92 × 303,520.56
  4. Step 4: Simplify right side
    473,286.72x = 198,239,876,673.96
  5. Step 5: Solve for x
    x = 198,239,876,673.96/473,286.72
  6. Step 6: Final answer
    x = 418,857.89

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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.