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Finding the Fourth Proportional to 511,991.55, 766,499.96 and 298,107.00

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Solution

The fourth proportional to 511,991.55, 766,499.96 and 298,107.00 is: 446,294.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,991.55 : 766,499.96 = 298,107.00 : x
  2. Step 2: Convert to fraction form
    511,991.55/766,499.96 = 298,107.00/x
  3. Step 3: Cross multiply
    511,991.55x = 766,499.96 × 298,107.00
  4. Step 4: Simplify right side
    511,991.55x = 228,498,998,252.69
  5. Step 5: Solve for x
    x = 228,498,998,252.69/511,991.55
  6. Step 6: Final answer
    x = 446,294.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.