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Finding the Fourth Proportional to 795.09, 1,097.78 and 496.46

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Solution

The fourth proportional to 795.09, 1,097.78 and 496.46 is: 685.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.09 : 1,097.78 = 496.46 : x
  2. Step 2: Convert to fraction form
    795.09/1,097.78 = 496.46/x
  3. Step 3: Cross multiply
    795.09x = 1,097.78 × 496.46
  4. Step 4: Simplify right side
    795.09x = 544,995.89
  5. Step 5: Solve for x
    x = 544,995.89/795.09
  6. Step 6: Final answer
    x = 685.45

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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.