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Finding the Fourth Proportional to 485,443.92, 728,496.12 and 297,882.96

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Solution

The fourth proportional to 485,443.92, 728,496.12 and 297,882.96 is: 447,027.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,443.92 : 728,496.12 = 297,882.96 : x
  2. Step 2: Convert to fraction form
    485,443.92/728,496.12 = 297,882.96/x
  3. Step 3: Cross multiply
    485,443.92x = 728,496.12 × 297,882.96
  4. Step 4: Simplify right side
    485,443.92x = 217,006,580,574.12
  5. Step 5: Solve for x
    x = 217,006,580,574.12/485,443.92
  6. Step 6: Final answer
    x = 447,027.09

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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.