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Finding the Fourth Proportional to 1,775,773.90, 2,664,006.45 and 764,893.90

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Solution

The fourth proportional to 1,775,773.90, 2,664,006.45 and 764,893.90 is: 1,147,489.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775,773.90 : 2,664,006.45 = 764,893.90 : x
  2. Step 2: Convert to fraction form
    1,775,773.90/2,664,006.45 = 764,893.90/x
  3. Step 3: Cross multiply
    1,775,773.90x = 2,664,006.45 × 764,893.90
  4. Step 4: Simplify right side
    1,775,773.90x = 2,037,682,283,165.66
  5. Step 5: Solve for x
    x = 2,037,682,283,165.66/1,775,773.90
  6. Step 6: Final answer
    x = 1,147,489.71

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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.