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Finding the Fourth Proportional to 627,469.62, 865,913.62 and 340,989.72

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Solution

The fourth proportional to 627,469.62, 865,913.62 and 340,989.72 is: 470,568.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,469.62 : 865,913.62 = 340,989.72 : x
  2. Step 2: Convert to fraction form
    627,469.62/865,913.62 = 340,989.72/x
  3. Step 3: Cross multiply
    627,469.62x = 865,913.62 × 340,989.72
  4. Step 4: Simplify right side
    627,469.62x = 295,267,642,827.99
  5. Step 5: Solve for x
    x = 295,267,642,827.99/627,469.62
  6. Step 6: Final answer
    x = 470,568.83

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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.