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Finding the Fourth Proportional to 624,591.60, 936,747.12 and 287,308.26

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Solution

The fourth proportional to 624,591.60, 936,747.12 and 287,308.26 is: 430,897.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,591.60 : 936,747.12 = 287,308.26 : x
  2. Step 2: Convert to fraction form
    624,591.60/936,747.12 = 287,308.26/x
  3. Step 3: Cross multiply
    624,591.60x = 936,747.12 × 287,308.26
  4. Step 4: Simplify right side
    624,591.60x = 269,135,185,107.21
  5. Step 5: Solve for x
    x = 269,135,185,107.21/624,591.60
  6. Step 6: Final answer
    x = 430,897.86

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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.