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Finding the Fourth Proportional to 994.19, 1,371.89 and 574.68

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Solution

The fourth proportional to 994.19, 1,371.89 and 574.68 is: 793.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.19 : 1,371.89 = 574.68 : x
  2. Step 2: Convert to fraction form
    994.19/1,371.89 = 574.68/x
  3. Step 3: Cross multiply
    994.19x = 1,371.89 × 574.68
  4. Step 4: Simplify right side
    994.19x = 788,394.87
  5. Step 5: Solve for x
    x = 788,394.87/994.19
  6. Step 6: Final answer
    x = 793.00

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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.