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Finding the Fourth Proportional to 653,794.66, 902,245.22 and 395,668.54

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Solution

The fourth proportional to 653,794.66, 902,245.22 and 395,668.54 is: 546,027.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,794.66 : 902,245.22 = 395,668.54 : x
  2. Step 2: Convert to fraction form
    653,794.66/902,245.22 = 395,668.54/x
  3. Step 3: Cross multiply
    653,794.66x = 902,245.22 × 395,668.54
  4. Step 4: Simplify right side
    653,794.66x = 356,990,048,919.38
  5. Step 5: Solve for x
    x = 356,990,048,919.38/653,794.66
  6. Step 6: Final answer
    x = 546,027.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.