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Finding the Fourth Proportional to 488,690.60, 732,999.45 and 204,307.70

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Solution

The fourth proportional to 488,690.60, 732,999.45 and 204,307.70 is: 306,446.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,690.60 : 732,999.45 = 204,307.70 : x
  2. Step 2: Convert to fraction form
    488,690.60/732,999.45 = 204,307.70/x
  3. Step 3: Cross multiply
    488,690.60x = 732,999.45 × 204,307.70
  4. Step 4: Simplify right side
    488,690.60x = 149,757,431,730.77
  5. Step 5: Solve for x
    x = 149,757,431,730.77/488,690.60
  6. Step 6: Final answer
    x = 306,446.31

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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.