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Finding the Fourth Proportional to 1,054.50, 1,582 and 324.04

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Solution

The fourth proportional to 1,054.50, 1,582 and 324.04 is: 486.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054.50 : 1,582 = 324.04 : x
  2. Step 2: Convert to fraction form
    1,054.50/1,582 = 324.04/x
  3. Step 3: Cross multiply
    1,054.50x = 1,582 × 324.04
  4. Step 4: Simplify right side
    1,054.50x = 512,631.28
  5. Step 5: Solve for x
    x = 512,631.28/1,054.50
  6. Step 6: Final answer
    x = 486.14

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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.