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Finding the Fourth Proportional to 623,591, 860,789.58 and 408,744.92

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Solution

The fourth proportional to 623,591, 860,789.58 and 408,744.92 is: 564,221.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,591 : 860,789.58 = 408,744.92 : x
  2. Step 2: Convert to fraction form
    623,591/860,789.58 = 408,744.92/x
  3. Step 3: Cross multiply
    623,591x = 860,789.58 × 408,744.92
  4. Step 4: Simplify right side
    623,591x = 351,843,368,013.93
  5. Step 5: Solve for x
    x = 351,843,368,013.93/623,591
  6. Step 6: Final answer
    x = 564,221.37

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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.