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Finding the Fourth Proportional to 488,999.87, 674,852.22 and 274,153.85

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Solution

The fourth proportional to 488,999.87, 674,852.22 and 274,153.85 is: 378,350.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,999.87 : 674,852.22 = 274,153.85 : x
  2. Step 2: Convert to fraction form
    488,999.87/674,852.22 = 274,153.85/x
  3. Step 3: Cross multiply
    488,999.87x = 674,852.22 × 274,153.85
  4. Step 4: Simplify right side
    488,999.87x = 185,013,332,923.28
  5. Step 5: Solve for x
    x = 185,013,332,923.28/488,999.87
  6. Step 6: Final answer
    x = 378,350.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.