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Finding the Fourth Proportional to 1,204.70, 1,805.79 and 587.55

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Solution

The fourth proportional to 1,204.70, 1,805.79 and 587.55 is: 880.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204.70 : 1,805.79 = 587.55 : x
  2. Step 2: Convert to fraction form
    1,204.70/1,805.79 = 587.55/x
  3. Step 3: Cross multiply
    1,204.70x = 1,805.79 × 587.55
  4. Step 4: Simplify right side
    1,204.70x = 1,060,991.91
  5. Step 5: Solve for x
    x = 1,060,991.91/1,204.70
  6. Step 6: Final answer
    x = 880.71

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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.