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Finding the Fourth Proportional to 789,860.64, 1,184,817.12 and 228,900

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Solution

The fourth proportional to 789,860.64, 1,184,817.12 and 228,900 is: 343,357.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,860.64 : 1,184,817.12 = 228,900 : x
  2. Step 2: Convert to fraction form
    789,860.64/1,184,817.12 = 228,900/x
  3. Step 3: Cross multiply
    789,860.64x = 1,184,817.12 × 228,900
  4. Step 4: Simplify right side
    789,860.64x = 271,204,638,768.00
  5. Step 5: Solve for x
    x = 271,204,638,768.00/789,860.64
  6. Step 6: Final answer
    x = 343,357.58

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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.