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Finding the Fourth Proportional to 499,930.60, 689,904.10 and 273,576.04

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Solution

The fourth proportional to 499,930.60, 689,904.10 and 273,576.04 is: 377,534.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,930.60 : 689,904.10 = 273,576.04 : x
  2. Step 2: Convert to fraction form
    499,930.60/689,904.10 = 273,576.04/x
  3. Step 3: Cross multiply
    499,930.60x = 689,904.10 × 273,576.04
  4. Step 4: Simplify right side
    499,930.60x = 188,741,231,657.76
  5. Step 5: Solve for x
    x = 188,741,231,657.76/499,930.60
  6. Step 6: Final answer
    x = 377,534.87

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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.