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Finding the Fourth Proportional to 504,857.80, 757,800.20 and 252,319.47

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Solution

The fourth proportional to 504,857.80, 757,800.20 and 252,319.47 is: 378,735.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,857.80 : 757,800.20 = 252,319.47 : x
  2. Step 2: Convert to fraction form
    504,857.80/757,800.20 = 252,319.47/x
  3. Step 3: Cross multiply
    504,857.80x = 757,800.20 × 252,319.47
  4. Step 4: Simplify right side
    504,857.80x = 191,207,744,829.89
  5. Step 5: Solve for x
    x = 191,207,744,829.89/504,857.80
  6. Step 6: Final answer
    x = 378,735.84

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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.