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Finding the Fourth Proportional to 539,882.98, 810,315.60 and 287,375.74

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Solution

The fourth proportional to 539,882.98, 810,315.60 and 287,375.74 is: 431,325.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,882.98 : 810,315.60 = 287,375.74 : x
  2. Step 2: Convert to fraction form
    539,882.98/810,315.60 = 287,375.74/x
  3. Step 3: Cross multiply
    539,882.98x = 810,315.60 × 287,375.74
  4. Step 4: Simplify right side
    539,882.98x = 232,865,045,183.54
  5. Step 5: Solve for x
    x = 232,865,045,183.54/539,882.98
  6. Step 6: Final answer
    x = 431,325.03

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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.