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Finding the Fourth Proportional to 465,429.04, 698,183.64 and 128,469.75

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Solution

The fourth proportional to 465,429.04, 698,183.64 and 128,469.75 is: 192,715.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,429.04 : 698,183.64 = 128,469.75 : x
  2. Step 2: Convert to fraction form
    465,429.04/698,183.64 = 128,469.75/x
  3. Step 3: Cross multiply
    465,429.04x = 698,183.64 × 128,469.75
  4. Step 4: Simplify right side
    465,429.04x = 89,695,479,355.31
  5. Step 5: Solve for x
    x = 89,695,479,355.31/465,429.04
  6. Step 6: Final answer
    x = 192,715.69

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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.