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Finding the Fourth Proportional to 455,567.70, 628,805.02 and 261,996.56

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Solution

The fourth proportional to 455,567.70, 628,805.02 and 261,996.56 is: 361,625.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,567.70 : 628,805.02 = 261,996.56 : x
  2. Step 2: Convert to fraction form
    455,567.70/628,805.02 = 261,996.56/x
  3. Step 3: Cross multiply
    455,567.70x = 628,805.02 × 261,996.56
  4. Step 4: Simplify right side
    455,567.70x = 164,744,752,150.73
  5. Step 5: Solve for x
    x = 164,744,752,150.73/455,567.70
  6. Step 6: Final answer
    x = 361,625.18

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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.