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Finding the Fourth Proportional to 453.76, 629.62 and 435.48

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Solution

The fourth proportional to 453.76, 629.62 and 435.48 is: 604.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.76 : 629.62 = 435.48 : x
  2. Step 2: Convert to fraction form
    453.76/629.62 = 435.48/x
  3. Step 3: Cross multiply
    453.76x = 629.62 × 435.48
  4. Step 4: Simplify right side
    453.76x = 274,186.92
  5. Step 5: Solve for x
    x = 274,186.92/453.76
  6. Step 6: Final answer
    x = 604.26

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.