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Finding the Fourth Proportional to 1,629.56, 2,445.44 and 603.56

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Solution

The fourth proportional to 1,629.56, 2,445.44 and 603.56 is: 905.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.56 : 2,445.44 = 603.56 : x
  2. Step 2: Convert to fraction form
    1,629.56/2,445.44 = 603.56/x
  3. Step 3: Cross multiply
    1,629.56x = 2,445.44 × 603.56
  4. Step 4: Simplify right side
    1,629.56x = 1,475,972.86
  5. Step 5: Solve for x
    x = 1,475,972.86/1,629.56
  6. Step 6: Final answer
    x = 905.75

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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.