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Finding the Fourth Proportional to 648, 896.52 and 554.52

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Solution

The fourth proportional to 648, 896.52 and 554.52 is: 767.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    648 : 896.52 = 554.52 : x
  2. Step 2: Convert to fraction form
    648/896.52 = 554.52/x
  3. Step 3: Cross multiply
    648x = 896.52 × 554.52
  4. Step 4: Simplify right side
    648x = 497,138.27
  5. Step 5: Solve for x
    x = 497,138.27/648
  6. Step 6: Final answer
    x = 767.19

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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.