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Finding the Fourth Proportional to 444,655.12, 667,342.32 and 344,578

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Solution

The fourth proportional to 444,655.12, 667,342.32 and 344,578 is: 517,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,655.12 : 667,342.32 = 344,578 : x
  2. Step 2: Convert to fraction form
    444,655.12/667,342.32 = 344,578/x
  3. Step 3: Cross multiply
    444,655.12x = 667,342.32 × 344,578
  4. Step 4: Simplify right side
    444,655.12x = 229,951,481,940.96
  5. Step 5: Solve for x
    x = 229,951,481,940.96/444,655.12
  6. Step 6: Final answer
    x = 517,145.70

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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.