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Finding the Fourth Proportional to 554.44, 765.84 and 482.08

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Solution

The fourth proportional to 554.44, 765.84 and 482.08 is: 665.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.44 : 765.84 = 482.08 : x
  2. Step 2: Convert to fraction form
    554.44/765.84 = 482.08/x
  3. Step 3: Cross multiply
    554.44x = 765.84 × 482.08
  4. Step 4: Simplify right side
    554.44x = 369,196.15
  5. Step 5: Solve for x
    x = 369,196.15/554.44
  6. Step 6: Final answer
    x = 665.89

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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.