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Finding the Fourth Proportional to 304,379.71, 456,589.61 and 79,745.65

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Solution

The fourth proportional to 304,379.71, 456,589.61 and 79,745.65 is: 119,623.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,379.71 : 456,589.61 = 79,745.65 : x
  2. Step 2: Convert to fraction form
    304,379.71/456,589.61 = 79,745.65/x
  3. Step 3: Cross multiply
    304,379.71x = 456,589.61 × 79,745.65
  4. Step 4: Simplify right side
    304,379.71x = 36,411,033,991.54
  5. Step 5: Solve for x
    x = 36,411,033,991.54/304,379.71
  6. Step 6: Final answer
    x = 119,623.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.