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Finding the Fourth Proportional to 619,299.32, 854,589.17 and 343,671.98

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Solution

The fourth proportional to 619,299.32, 854,589.17 and 343,671.98 is: 474,242.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,299.32 : 854,589.17 = 343,671.98 : x
  2. Step 2: Convert to fraction form
    619,299.32/854,589.17 = 343,671.98/x
  3. Step 3: Cross multiply
    619,299.32x = 854,589.17 × 343,671.98
  4. Step 4: Simplify right side
    619,299.32x = 293,698,346,149.15
  5. Step 5: Solve for x
    x = 293,698,346,149.15/619,299.32
  6. Step 6: Final answer
    x = 474,242.97

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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.