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Finding the Fourth Proportional to 631.45, 944.83 and 554.05

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Solution

The fourth proportional to 631.45, 944.83 and 554.05 is: 829.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.45 : 944.83 = 554.05 : x
  2. Step 2: Convert to fraction form
    631.45/944.83 = 554.05/x
  3. Step 3: Cross multiply
    631.45x = 944.83 × 554.05
  4. Step 4: Simplify right side
    631.45x = 523,483.06
  5. Step 5: Solve for x
    x = 523,483.06/631.45
  6. Step 6: Final answer
    x = 829.02

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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.