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Finding the Fourth Proportional to 795.17, 1,097.25 and 445.79

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Solution

The fourth proportional to 795.17, 1,097.25 and 445.79 is: 615.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.17 : 1,097.25 = 445.79 : x
  2. Step 2: Convert to fraction form
    795.17/1,097.25 = 445.79/x
  3. Step 3: Cross multiply
    795.17x = 1,097.25 × 445.79
  4. Step 4: Simplify right side
    795.17x = 489,143.08
  5. Step 5: Solve for x
    x = 489,143.08/795.17
  6. Step 6: Final answer
    x = 615.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.