Home / 500,174.21-690,240.39-273,819.71

Finding the Fourth Proportional to 500,174.21, 690,240.39 and 273,819.71

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Solution

The fourth proportional to 500,174.21, 690,240.39 and 273,819.71 is: 377,871.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,174.21 : 690,240.39 = 273,819.71 : x
  2. Step 2: Convert to fraction form
    500,174.21/690,240.39 = 273,819.71/x
  3. Step 3: Cross multiply
    500,174.21x = 690,240.39 × 273,819.71
  4. Step 4: Simplify right side
    500,174.21x = 189,001,423,420.09
  5. Step 5: Solve for x
    x = 189,001,423,420.09/500,174.21
  6. Step 6: Final answer
    x = 377,871.19

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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.