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Finding the Fourth Proportional to 579,812, 800,228.04 and 353,588.72

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Solution

The fourth proportional to 579,812, 800,228.04 and 353,588.72 is: 488,005.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,812 : 800,228.04 = 353,588.72 : x
  2. Step 2: Convert to fraction form
    579,812/800,228.04 = 353,588.72/x
  3. Step 3: Cross multiply
    579,812x = 800,228.04 × 353,588.72
  4. Step 4: Simplify right side
    579,812x = 282,951,608,371.71
  5. Step 5: Solve for x
    x = 282,951,608,371.71/579,812
  6. Step 6: Final answer
    x = 488,005.78

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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.