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Finding the Fourth Proportional to 1,800,793.60, 2,700,801.60 and 789,913.60

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Solution

The fourth proportional to 1,800,793.60, 2,700,801.60 and 789,913.60 is: 1,184,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800,793.60 : 2,700,801.60 = 789,913.60 : x
  2. Step 2: Convert to fraction form
    1,800,793.60/2,700,801.60 = 789,913.60/x
  3. Step 3: Cross multiply
    1,800,793.60x = 2,700,801.60 × 789,913.60
  4. Step 4: Simplify right side
    1,800,793.60x = 2,133,399,914,741.76
  5. Step 5: Solve for x
    x = 2,133,399,914,741.76/1,800,793.60
  6. Step 6: Final answer
    x = 1,184,699.85

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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.