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Finding the Fourth Proportional to 1,212.36, 1,817.99 and 595.95

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Solution

The fourth proportional to 1,212.36, 1,817.99 and 595.95 is: 893.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212.36 : 1,817.99 = 595.95 : x
  2. Step 2: Convert to fraction form
    1,212.36/1,817.99 = 595.95/x
  3. Step 3: Cross multiply
    1,212.36x = 1,817.99 × 595.95
  4. Step 4: Simplify right side
    1,212.36x = 1,083,431.14
  5. Step 5: Solve for x
    x = 1,083,431.14/1,212.36
  6. Step 6: Final answer
    x = 893.65

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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.