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Finding the Fourth Proportional to 936.99, 1,404.27 and 503.64

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Solution

The fourth proportional to 936.99, 1,404.27 and 503.64 is: 754.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    936.99 : 1,404.27 = 503.64 : x
  2. Step 2: Convert to fraction form
    936.99/1,404.27 = 503.64/x
  3. Step 3: Cross multiply
    936.99x = 1,404.27 × 503.64
  4. Step 4: Simplify right side
    936.99x = 707,246.54
  5. Step 5: Solve for x
    x = 707,246.54/936.99
  6. Step 6: Final answer
    x = 754.81

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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.