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Finding the Fourth Proportional to 1,173.41, 1,619.14 and 676.00

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Solution

The fourth proportional to 1,173.41, 1,619.14 and 676.00 is: 932.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.41 : 1,619.14 = 676.00 : x
  2. Step 2: Convert to fraction form
    1,173.41/1,619.14 = 676.00/x
  3. Step 3: Cross multiply
    1,173.41x = 1,619.14 × 676.00
  4. Step 4: Simplify right side
    1,173.41x = 1,094,527.16
  5. Step 5: Solve for x
    x = 1,094,527.16/1,173.41
  6. Step 6: Final answer
    x = 932.78

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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.