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Finding the Fourth Proportional to 455,964.72, 629,218.44 and 254,760.72

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Solution

The fourth proportional to 455,964.72, 629,218.44 and 254,760.72 is: 351,562.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,964.72 : 629,218.44 = 254,760.72 : x
  2. Step 2: Convert to fraction form
    455,964.72/629,218.44 = 254,760.72/x
  3. Step 3: Cross multiply
    455,964.72x = 629,218.44 × 254,760.72
  4. Step 4: Simplify right side
    455,964.72x = 160,300,142,811.68
  5. Step 5: Solve for x
    x = 160,300,142,811.68/455,964.72
  6. Step 6: Final answer
    x = 351,562.60

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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.