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Finding the Fourth Proportional to 660.36, 995.08 and 547.35

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Solution

The fourth proportional to 660.36, 995.08 and 547.35 is: 824.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    660.36 : 995.08 = 547.35 : x
  2. Step 2: Convert to fraction form
    660.36/995.08 = 547.35/x
  3. Step 3: Cross multiply
    660.36x = 995.08 × 547.35
  4. Step 4: Simplify right side
    660.36x = 544,651.94
  5. Step 5: Solve for x
    x = 544,651.94/660.36
  6. Step 6: Final answer
    x = 824.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.