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Finding the Fourth Proportional to 490,795.60, 736,047.60 and 191,103.70

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Solution

The fourth proportional to 490,795.60, 736,047.60 and 191,103.70 is: 286,598.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,795.60 : 736,047.60 = 191,103.70 : x
  2. Step 2: Convert to fraction form
    490,795.60/736,047.60 = 191,103.70/x
  3. Step 3: Cross multiply
    490,795.60x = 736,047.60 × 191,103.70
  4. Step 4: Simplify right side
    490,795.60x = 140,661,419,736.12
  5. Step 5: Solve for x
    x = 140,661,419,736.12/490,795.60
  6. Step 6: Final answer
    x = 286,598.78

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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.