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Finding the Fourth Proportional to 625,894.62, 863,735.04 and 339,414.64

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Solution

The fourth proportional to 625,894.62, 863,735.04 and 339,414.64 is: 468,392.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,894.62 : 863,735.04 = 339,414.64 : x
  2. Step 2: Convert to fraction form
    625,894.62/863,735.04 = 339,414.64/x
  3. Step 3: Cross multiply
    625,894.62x = 863,735.04 × 339,414.64
  4. Step 4: Simplify right side
    625,894.62x = 293,164,317,656.99
  5. Step 5: Solve for x
    x = 293,164,317,656.99/625,894.62
  6. Step 6: Final answer
    x = 468,392.46

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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.