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Finding the Fourth Proportional to 1,043.36, 1,439.99 and 601.18

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Solution

The fourth proportional to 1,043.36, 1,439.99 and 601.18 is: 829.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.36 : 1,439.99 = 601.18 : x
  2. Step 2: Convert to fraction form
    1,043.36/1,439.99 = 601.18/x
  3. Step 3: Cross multiply
    1,043.36x = 1,439.99 × 601.18
  4. Step 4: Simplify right side
    1,043.36x = 865,691.09
  5. Step 5: Solve for x
    x = 865,691.09/1,043.36
  6. Step 6: Final answer
    x = 829.71

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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.