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Finding the Fourth Proportional to 1,097.69, 1,645.56 and 404.19

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Solution

The fourth proportional to 1,097.69, 1,645.56 and 404.19 is: 605.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097.69 : 1,645.56 = 404.19 : x
  2. Step 2: Convert to fraction form
    1,097.69/1,645.56 = 404.19/x
  3. Step 3: Cross multiply
    1,097.69x = 1,645.56 × 404.19
  4. Step 4: Simplify right side
    1,097.69x = 665,117.38
  5. Step 5: Solve for x
    x = 665,117.38/1,097.69
  6. Step 6: Final answer
    x = 605.93

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.