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Finding the Fourth Proportional to 478,817.03, 660,771.92 and 263,964.78

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Solution

The fourth proportional to 478,817.03, 660,771.92 and 263,964.78 is: 364,273.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,817.03 : 660,771.92 = 263,964.78 : x
  2. Step 2: Convert to fraction form
    478,817.03/660,771.92 = 263,964.78/x
  3. Step 3: Cross multiply
    478,817.03x = 660,771.92 × 263,964.78
  4. Step 4: Simplify right side
    478,817.03x = 174,420,515,152.89
  5. Step 5: Solve for x
    x = 174,420,515,152.89/478,817.03
  6. Step 6: Final answer
    x = 364,273.83

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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.