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Finding the Fourth Proportional to 626,271.30, 864,257.85 and 339,791.94

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Solution

The fourth proportional to 626,271.30, 864,257.85 and 339,791.94 is: 468,914.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,271.30 : 864,257.85 = 339,791.94 : x
  2. Step 2: Convert to fraction form
    626,271.30/864,257.85 = 339,791.94/x
  3. Step 3: Cross multiply
    626,271.30x = 864,257.85 × 339,791.94
  4. Step 4: Simplify right side
    626,271.30x = 293,667,851,511.73
  5. Step 5: Solve for x
    x = 293,667,851,511.73/626,271.30
  6. Step 6: Final answer
    x = 468,914.75

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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.