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Finding the Fourth Proportional to 488,979.60, 733,469.40 and 300,022.80

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Solution

The fourth proportional to 488,979.60, 733,469.40 and 300,022.80 is: 450,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,979.60 : 733,469.40 = 300,022.80 : x
  2. Step 2: Convert to fraction form
    488,979.60/733,469.40 = 300,022.80/x
  3. Step 3: Cross multiply
    488,979.60x = 733,469.40 × 300,022.80
  4. Step 4: Simplify right side
    488,979.60x = 220,057,543,102.32
  5. Step 5: Solve for x
    x = 220,057,543,102.32/488,979.60
  6. Step 6: Final answer
    x = 450,034.20

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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.