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Finding the Fourth Proportional to 455,429.63, 628,548.31 and 264,443.03

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Solution

The fourth proportional to 455,429.63, 628,548.31 and 264,443.03 is: 364,963.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,429.63 : 628,548.31 = 264,443.03 : x
  2. Step 2: Convert to fraction form
    455,429.63/628,548.31 = 264,443.03/x
  3. Step 3: Cross multiply
    455,429.63x = 628,548.31 × 264,443.03
  4. Step 4: Simplify right side
    455,429.63x = 166,215,219,142.65
  5. Step 5: Solve for x
    x = 166,215,219,142.65/455,429.63
  6. Step 6: Final answer
    x = 364,963.56

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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.