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Finding the Fourth Proportional to 465,450.62, 698,161.98 and 128,511.86

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Solution

The fourth proportional to 465,450.62, 698,161.98 and 128,511.86 is: 192,763.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,450.62 : 698,161.98 = 128,511.86 : x
  2. Step 2: Convert to fraction form
    465,450.62/698,161.98 = 128,511.86/x
  3. Step 3: Cross multiply
    465,450.62x = 698,161.98 × 128,511.86
  4. Step 4: Simplify right side
    465,450.62x = 89,722,094,631.08
  5. Step 5: Solve for x
    x = 89,722,094,631.08/465,450.62
  6. Step 6: Final answer
    x = 192,763.94

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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.