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Finding the Fourth Proportional to 1,043.35, 1,439.91 and 601.39

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Solution

The fourth proportional to 1,043.35, 1,439.91 and 601.39 is: 829.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.35 : 1,439.91 = 601.39 : x
  2. Step 2: Convert to fraction form
    1,043.35/1,439.91 = 601.39/x
  3. Step 3: Cross multiply
    1,043.35x = 1,439.91 × 601.39
  4. Step 4: Simplify right side
    1,043.35x = 865,949.27
  5. Step 5: Solve for x
    x = 865,949.27/1,043.35
  6. Step 6: Final answer
    x = 829.97

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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.