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Finding the Fourth Proportional to 1,424.54, 2,135.42 and 603.52

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Solution

The fourth proportional to 1,424.54, 2,135.42 and 603.52 is: 904.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.54 : 2,135.42 = 603.52 : x
  2. Step 2: Convert to fraction form
    1,424.54/2,135.42 = 603.52/x
  3. Step 3: Cross multiply
    1,424.54x = 2,135.42 × 603.52
  4. Step 4: Simplify right side
    1,424.54x = 1,288,768.68
  5. Step 5: Solve for x
    x = 1,288,768.68/1,424.54
  6. Step 6: Final answer
    x = 904.69

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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.