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Finding the Fourth Proportional to 664,279.65, 996,516.68 and 348,760.35

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Solution

The fourth proportional to 664,279.65, 996,516.68 and 348,760.35 is: 523,191.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,279.65 : 996,516.68 = 348,760.35 : x
  2. Step 2: Convert to fraction form
    664,279.65/996,516.68 = 348,760.35/x
  3. Step 3: Cross multiply
    664,279.65x = 996,516.68 × 348,760.35
  4. Step 4: Simplify right side
    664,279.65x = 347,545,504,353.84
  5. Step 5: Solve for x
    x = 347,545,504,353.84/664,279.65
  6. Step 6: Final answer
    x = 523,191.56

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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.