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Finding the Fourth Proportional to 1,209.58, 1,813.56 and 593.44

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Solution

The fourth proportional to 1,209.58, 1,813.56 and 593.44 is: 889.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209.58 : 1,813.56 = 593.44 : x
  2. Step 2: Convert to fraction form
    1,209.58/1,813.56 = 593.44/x
  3. Step 3: Cross multiply
    1,209.58x = 1,813.56 × 593.44
  4. Step 4: Simplify right side
    1,209.58x = 1,076,239.05
  5. Step 5: Solve for x
    x = 1,076,239.05/1,209.58
  6. Step 6: Final answer
    x = 889.76

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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.