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Finding the Fourth Proportional to 441,010.20, 661,515.30 and 378,024.60

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Solution

The fourth proportional to 441,010.20, 661,515.30 and 378,024.60 is: 567,036.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,010.20 : 661,515.30 = 378,024.60 : x
  2. Step 2: Convert to fraction form
    441,010.20/661,515.30 = 378,024.60/x
  3. Step 3: Cross multiply
    441,010.20x = 661,515.30 × 378,024.60
  4. Step 4: Simplify right side
    441,010.20x = 250,069,056,676.38
  5. Step 5: Solve for x
    x = 250,069,056,676.38/441,010.20
  6. Step 6: Final answer
    x = 567,036.90

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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.