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Finding the Fourth Proportional to 504,520.80, 757,072.80 and 189,009.60

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Solution

The fourth proportional to 504,520.80, 757,072.80 and 189,009.60 is: 283,623.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,520.80 : 757,072.80 = 189,009.60 : x
  2. Step 2: Convert to fraction form
    504,520.80/757,072.80 = 189,009.60/x
  3. Step 3: Cross multiply
    504,520.80x = 757,072.80 × 189,009.60
  4. Step 4: Simplify right side
    504,520.80x = 143,094,027,098.88
  5. Step 5: Solve for x
    x = 143,094,027,098.88/504,520.80
  6. Step 6: Final answer
    x = 283,623.64

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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.