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Finding the Fourth Proportional to 619,299.82, 854,589.86 and 343,672.48

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Solution

The fourth proportional to 619,299.82, 854,589.86 and 343,672.48 is: 474,243.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,299.82 : 854,589.86 = 343,672.48 : x
  2. Step 2: Convert to fraction form
    619,299.82/854,589.86 = 343,672.48/x
  3. Step 3: Cross multiply
    619,299.82x = 854,589.86 × 343,672.48
  4. Step 4: Simplify right side
    619,299.82x = 293,699,010,577.74
  5. Step 5: Solve for x
    x = 293,699,010,577.74/619,299.82
  6. Step 6: Final answer
    x = 474,243.66

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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.