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Finding the Fourth Proportional to 1,230.06, 1,844 and 581.58

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Solution

The fourth proportional to 1,230.06, 1,844 and 581.58 is: 871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.06 : 1,844 = 581.58 : x
  2. Step 2: Convert to fraction form
    1,230.06/1,844 = 581.58/x
  3. Step 3: Cross multiply
    1,230.06x = 1,844 × 581.58
  4. Step 4: Simplify right side
    1,230.06x = 1,072,433.52
  5. Step 5: Solve for x
    x = 1,072,433.52/1,230.06
  6. Step 6: Final answer
    x = 871.85

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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.