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Finding the Fourth Proportional to 1,198.45, 1,798.37 and 467.99

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Solution

The fourth proportional to 1,198.45, 1,798.37 and 467.99 is: 702.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198.45 : 1,798.37 = 467.99 : x
  2. Step 2: Convert to fraction form
    1,198.45/1,798.37 = 467.99/x
  3. Step 3: Cross multiply
    1,198.45x = 1,798.37 × 467.99
  4. Step 4: Simplify right side
    1,198.45x = 841,607.84
  5. Step 5: Solve for x
    x = 841,607.84/1,198.45
  6. Step 6: Final answer
    x = 702.25

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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.