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Finding the Fourth Proportional to 982.24, 1,473.36 and 549.16

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Solution

The fourth proportional to 982.24, 1,473.36 and 549.16 is: 823.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.24 : 1,473.36 = 549.16 : x
  2. Step 2: Convert to fraction form
    982.24/1,473.36 = 549.16/x
  3. Step 3: Cross multiply
    982.24x = 1,473.36 × 549.16
  4. Step 4: Simplify right side
    982.24x = 809,110.38
  5. Step 5: Solve for x
    x = 809,110.38/982.24
  6. Step 6: Final answer
    x = 823.74

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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.