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Finding the Fourth Proportional to 994.95, 1,373.09 and 575.44

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Solution

The fourth proportional to 994.95, 1,373.09 and 575.44 is: 794.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.95 : 1,373.09 = 575.44 : x
  2. Step 2: Convert to fraction form
    994.95/1,373.09 = 575.44/x
  3. Step 3: Cross multiply
    994.95x = 1,373.09 × 575.44
  4. Step 4: Simplify right side
    994.95x = 790,124.60
  5. Step 5: Solve for x
    x = 790,124.60/994.95
  6. Step 6: Final answer
    x = 794.13

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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.