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Finding the Fourth Proportional to 1,763.28, 2,644.44 and 609.36

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Solution

The fourth proportional to 1,763.28, 2,644.44 and 609.36 is: 913.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,763.28 : 2,644.44 = 609.36 : x
  2. Step 2: Convert to fraction form
    1,763.28/2,644.44 = 609.36/x
  3. Step 3: Cross multiply
    1,763.28x = 2,644.44 × 609.36
  4. Step 4: Simplify right side
    1,763.28x = 1,611,415.96
  5. Step 5: Solve for x
    x = 1,611,415.96/1,763.28
  6. Step 6: Final answer
    x = 913.87

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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.