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Finding the Fourth Proportional to 863,352.10, 1,294,289.74 and 331,255

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Solution

The fourth proportional to 863,352.10, 1,294,289.74 and 331,255 is: 496,599.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,352.10 : 1,294,289.74 = 331,255 : x
  2. Step 2: Convert to fraction form
    863,352.10/1,294,289.74 = 331,255/x
  3. Step 3: Cross multiply
    863,352.10x = 1,294,289.74 × 331,255
  4. Step 4: Simplify right side
    863,352.10x = 428,739,947,823.70
  5. Step 5: Solve for x
    x = 428,739,947,823.70/863,352.10
  6. Step 6: Final answer
    x = 496,599.18

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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.