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Finding the Fourth Proportional to 1,098.17, 1,647.54 and 482.00

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Solution

The fourth proportional to 1,098.17, 1,647.54 and 482.00 is: 723.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098.17 : 1,647.54 = 482.00 : x
  2. Step 2: Convert to fraction form
    1,098.17/1,647.54 = 482.00/x
  3. Step 3: Cross multiply
    1,098.17x = 1,647.54 × 482.00
  4. Step 4: Simplify right side
    1,098.17x = 794,106.04
  5. Step 5: Solve for x
    x = 794,106.04/1,098.17
  6. Step 6: Final answer
    x = 723.12

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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.