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Finding the Fourth Proportional to 488,442.60, 673,704.36 and 304,773.64

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Solution

The fourth proportional to 488,442.60, 673,704.36 and 304,773.64 is: 420,371.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,442.60 : 673,704.36 = 304,773.64 : x
  2. Step 2: Convert to fraction form
    488,442.60/673,704.36 = 304,773.64/x
  3. Step 3: Cross multiply
    488,442.60x = 673,704.36 × 304,773.64
  4. Step 4: Simplify right side
    488,442.60x = 205,327,330,081.07
  5. Step 5: Solve for x
    x = 205,327,330,081.07/488,442.60
  6. Step 6: Final answer
    x = 420,371.46

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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.