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Finding the Fourth Proportional to 625.62, 936.36 and 603.75

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Solution

The fourth proportional to 625.62, 936.36 and 603.75 is: 903.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.62 : 936.36 = 603.75 : x
  2. Step 2: Convert to fraction form
    625.62/936.36 = 603.75/x
  3. Step 3: Cross multiply
    625.62x = 936.36 × 603.75
  4. Step 4: Simplify right side
    625.62x = 565,330.86
  5. Step 5: Solve for x
    x = 565,330.86/625.62
  6. Step 6: Final answer
    x = 903.63

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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.