Home / 500,178.21-690,245.91-273,823.71

Finding the Fourth Proportional to 500,178.21, 690,245.91 and 273,823.71

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Solution

The fourth proportional to 500,178.21, 690,245.91 and 273,823.71 is: 377,876.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,178.21 : 690,245.91 = 273,823.71 : x
  2. Step 2: Convert to fraction form
    500,178.21/690,245.91 = 273,823.71/x
  3. Step 3: Cross multiply
    500,178.21x = 690,245.91 × 273,823.71
  4. Step 4: Simplify right side
    500,178.21x = 189,005,695,888.53
  5. Step 5: Solve for x
    x = 189,005,695,888.53/500,178.21
  6. Step 6: Final answer
    x = 377,876.71

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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.