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Finding the Fourth Proportional to 489,104.80, 734,021.70 and 252,325.60

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Solution

The fourth proportional to 489,104.80, 734,021.70 and 252,325.60 is: 378,676.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,104.80 : 734,021.70 = 252,325.60 : x
  2. Step 2: Convert to fraction form
    489,104.80/734,021.70 = 252,325.60/x
  3. Step 3: Cross multiply
    489,104.80x = 734,021.70 × 252,325.60
  4. Step 4: Simplify right side
    489,104.80x = 185,212,465,865.52
  5. Step 5: Solve for x
    x = 185,212,465,865.52/489,104.80
  6. Step 6: Final answer
    x = 378,676.44

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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.