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Finding the Fourth Proportional to 455,762.34, 628,958.61 and 251,817.98

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Solution

The fourth proportional to 455,762.34, 628,958.61 and 251,817.98 is: 347,512.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,762.34 : 628,958.61 = 251,817.98 : x
  2. Step 2: Convert to fraction form
    455,762.34/628,958.61 = 251,817.98/x
  3. Step 3: Cross multiply
    455,762.34x = 628,958.61 × 251,817.98
  4. Step 4: Simplify right side
    455,762.34x = 158,383,083,529.02
  5. Step 5: Solve for x
    x = 158,383,083,529.02/455,762.34
  6. Step 6: Final answer
    x = 347,512.44

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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.