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Finding the Fourth Proportional to 490,730.67, 735,794.55 and 190,861.72

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Solution

The fourth proportional to 490,730.67, 735,794.55 and 190,861.72 is: 286,175.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,730.67 : 735,794.55 = 190,861.72 : x
  2. Step 2: Convert to fraction form
    490,730.67/735,794.55 = 190,861.72/x
  3. Step 3: Cross multiply
    490,730.67x = 735,794.55 × 190,861.72
  4. Step 4: Simplify right side
    490,730.67x = 140,435,011,540.14
  5. Step 5: Solve for x
    x = 140,435,011,540.14/490,730.67
  6. Step 6: Final answer
    x = 286,175.33

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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.