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Finding the Fourth Proportional to 979.35, 1,468.88 and 541.41

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Solution

The fourth proportional to 979.35, 1,468.88 and 541.41 is: 812.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    979.35 : 1,468.88 = 541.41 : x
  2. Step 2: Convert to fraction form
    979.35/1,468.88 = 541.41/x
  3. Step 3: Cross multiply
    979.35x = 1,468.88 × 541.41
  4. Step 4: Simplify right side
    979.35x = 795,258.98
  5. Step 5: Solve for x
    x = 795,258.98/979.35
  6. Step 6: Final answer
    x = 812.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.