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Finding the Fourth Proportional to 1,046.41, 1,568.71 and 429.73

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Solution

The fourth proportional to 1,046.41, 1,568.71 and 429.73 is: 644.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.41 : 1,568.71 = 429.73 : x
  2. Step 2: Convert to fraction form
    1,046.41/1,568.71 = 429.73/x
  3. Step 3: Cross multiply
    1,046.41x = 1,568.71 × 429.73
  4. Step 4: Simplify right side
    1,046.41x = 674,121.75
  5. Step 5: Solve for x
    x = 674,121.75/1,046.41
  6. Step 6: Final answer
    x = 644.22

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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.