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Finding the Fourth Proportional to 479,601.12, 717,626.16 and 384,540.60

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Solution

The fourth proportional to 479,601.12, 717,626.16 and 384,540.60 is: 575,387.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,601.12 : 717,626.16 = 384,540.60 : x
  2. Step 2: Convert to fraction form
    479,601.12/717,626.16 = 384,540.60/x
  3. Step 3: Cross multiply
    479,601.12x = 717,626.16 × 384,540.60
  4. Step 4: Simplify right side
    479,601.12x = 275,956,394,142.10
  5. Step 5: Solve for x
    x = 275,956,394,142.10/479,601.12
  6. Step 6: Final answer
    x = 575,387.30

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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.