Home / 499,760.14-689,685.60-273,405.64

Finding the Fourth Proportional to 499,760.14, 689,685.60 and 273,405.64

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Solution

The fourth proportional to 499,760.14, 689,685.60 and 273,405.64 is: 377,308.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,760.14 : 689,685.60 = 273,405.64 : x
  2. Step 2: Convert to fraction form
    499,760.14/689,685.60 = 273,405.64/x
  3. Step 3: Cross multiply
    499,760.14x = 689,685.60 × 273,405.64
  4. Step 4: Simplify right side
    499,760.14x = 188,563,932,866.78
  5. Step 5: Solve for x
    x = 188,563,932,866.78/499,760.14
  6. Step 6: Final answer
    x = 377,308.87

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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.