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Finding the Fourth Proportional to 806.26, 1,112.57 and 544.63

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Solution

The fourth proportional to 806.26, 1,112.57 and 544.63 is: 751.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    806.26 : 1,112.57 = 544.63 : x
  2. Step 2: Convert to fraction form
    806.26/1,112.57 = 544.63/x
  3. Step 3: Cross multiply
    806.26x = 1,112.57 × 544.63
  4. Step 4: Simplify right side
    806.26x = 605,939.00
  5. Step 5: Solve for x
    x = 605,939.00/806.26
  6. Step 6: Final answer
    x = 751.54

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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.