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Finding the Fourth Proportional to 944.49, 1,416.93 and 328.03

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Solution

The fourth proportional to 944.49, 1,416.93 and 328.03 is: 492.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.49 : 1,416.93 = 328.03 : x
  2. Step 2: Convert to fraction form
    944.49/1,416.93 = 328.03/x
  3. Step 3: Cross multiply
    944.49x = 1,416.93 × 328.03
  4. Step 4: Simplify right side
    944.49x = 464,795.55
  5. Step 5: Solve for x
    x = 464,795.55/944.49
  6. Step 6: Final answer
    x = 492.11

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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.