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Finding the Fourth Proportional to 490,796.60, 736,049.10 and 191,104.70

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Solution

The fourth proportional to 490,796.60, 736,049.10 and 191,104.70 is: 286,600.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,796.60 : 736,049.10 = 191,104.70 : x
  2. Step 2: Convert to fraction form
    490,796.60/736,049.10 = 191,104.70/x
  3. Step 3: Cross multiply
    490,796.60x = 736,049.10 × 191,104.70
  4. Step 4: Simplify right side
    490,796.60x = 140,662,442,440.77
  5. Step 5: Solve for x
    x = 140,662,442,440.77/490,796.60
  6. Step 6: Final answer
    x = 286,600.28

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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.