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Finding the Fourth Proportional to 441,721.20, 661,269.60 and 441,721.20

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Solution

The fourth proportional to 441,721.20, 661,269.60 and 441,721.20 is: 661,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,721.20 : 661,269.60 = 441,721.20 : x
  2. Step 2: Convert to fraction form
    441,721.20/661,269.60 = 441,721.20/x
  3. Step 3: Cross multiply
    441,721.20x = 661,269.60 × 441,721.20
  4. Step 4: Simplify right side
    441,721.20x = 292,096,801,235.52
  5. Step 5: Solve for x
    x = 292,096,801,235.52/441,721.20
  6. Step 6: Final answer
    x = 661,269.60

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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.