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Finding the Fourth Proportional to 459, 631.56 and 443.04

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Solution

The fourth proportional to 459, 631.56 and 443.04 is: 609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    459 : 631.56 = 443.04 : x
  2. Step 2: Convert to fraction form
    459/631.56 = 443.04/x
  3. Step 3: Cross multiply
    459x = 631.56 × 443.04
  4. Step 4: Simplify right side
    459x = 279,806.34
  5. Step 5: Solve for x
    x = 279,806.34/459
  6. Step 6: Final answer
    x = 609.60

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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.