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Finding the Fourth Proportional to 445,508.10, 667,715.40 and 303,353.10

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Solution

The fourth proportional to 445,508.10, 667,715.40 and 303,353.10 is: 454,657.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,508.10 : 667,715.40 = 303,353.10 : x
  2. Step 2: Convert to fraction form
    445,508.10/667,715.40 = 303,353.10/x
  3. Step 3: Cross multiply
    445,508.10x = 667,715.40 × 303,353.10
  4. Step 4: Simplify right side
    445,508.10x = 202,553,536,507.74
  5. Step 5: Solve for x
    x = 202,553,536,507.74/445,508.10
  6. Step 6: Final answer
    x = 454,657.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.