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Finding the Fourth Proportional to 484,789.62, 727,212.38 and 147,841.78

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Solution

The fourth proportional to 484,789.62, 727,212.38 and 147,841.78 is: 221,771.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,789.62 : 727,212.38 = 147,841.78 : x
  2. Step 2: Convert to fraction form
    484,789.62/727,212.38 = 147,841.78/x
  3. Step 3: Cross multiply
    484,789.62x = 727,212.38 × 147,841.78
  4. Step 4: Simplify right side
    484,789.62x = 107,512,372,697.24
  5. Step 5: Solve for x
    x = 107,512,372,697.24/484,789.62
  6. Step 6: Final answer
    x = 221,771.19

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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.