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Finding the Fourth Proportional to 490,690.60, 736,035.90 and 254,494.60

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Solution

The fourth proportional to 490,690.60, 736,035.90 and 254,494.60 is: 381,741.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,690.60 : 736,035.90 = 254,494.60 : x
  2. Step 2: Convert to fraction form
    490,690.60/736,035.90 = 254,494.60/x
  3. Step 3: Cross multiply
    490,690.60x = 736,035.90 × 254,494.60
  4. Step 4: Simplify right side
    490,690.60x = 187,317,161,956.14
  5. Step 5: Solve for x
    x = 187,317,161,956.14/490,690.60
  6. Step 6: Final answer
    x = 381,741.90

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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.