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Finding the Fourth Proportional to 555,790.62, 834,801.90 and 331,589.10

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Solution

The fourth proportional to 555,790.62, 834,801.90 and 331,589.10 is: 498,049.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,790.62 : 834,801.90 = 331,589.10 : x
  2. Step 2: Convert to fraction form
    555,790.62/834,801.90 = 331,589.10/x
  3. Step 3: Cross multiply
    555,790.62x = 834,801.90 × 331,589.10
  4. Step 4: Simplify right side
    555,790.62x = 276,811,210,699.29
  5. Step 5: Solve for x
    x = 276,811,210,699.29/555,790.62
  6. Step 6: Final answer
    x = 498,049.45

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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.