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Finding the Fourth Proportional to 490,797.60, 736,050.60 and 191,105.70

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Solution

The fourth proportional to 490,797.60, 736,050.60 and 191,105.70 is: 286,601.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,797.60 : 736,050.60 = 191,105.70 : x
  2. Step 2: Convert to fraction form
    490,797.60/736,050.60 = 191,105.70/x
  3. Step 3: Cross multiply
    490,797.60x = 736,050.60 × 191,105.70
  4. Step 4: Simplify right side
    490,797.60x = 140,663,465,148.42
  5. Step 5: Solve for x
    x = 140,663,465,148.42/490,797.60
  6. Step 6: Final answer
    x = 286,601.78

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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.