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Finding the Fourth Proportional to 1,122.44, 1,684.12 and 602.31

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Solution

The fourth proportional to 1,122.44, 1,684.12 and 602.31 is: 903.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122.44 : 1,684.12 = 602.31 : x
  2. Step 2: Convert to fraction form
    1,122.44/1,684.12 = 602.31/x
  3. Step 3: Cross multiply
    1,122.44x = 1,684.12 × 602.31
  4. Step 4: Simplify right side
    1,122.44x = 1,014,362.32
  5. Step 5: Solve for x
    x = 1,014,362.32/1,122.44
  6. Step 6: Final answer
    x = 903.71

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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.