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Finding the Fourth Proportional to 1,294,942.96, 1,787,147.60 and 967,687.68

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Solution

The fourth proportional to 1,294,942.96, 1,787,147.60 and 967,687.68 is: 1,335,503.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,942.96 : 1,787,147.60 = 967,687.68 : x
  2. Step 2: Convert to fraction form
    1,294,942.96/1,787,147.60 = 967,687.68/x
  3. Step 3: Cross multiply
    1,294,942.96x = 1,787,147.60 × 967,687.68
  4. Step 4: Simplify right side
    1,294,942.96x = 1,729,400,715,885.24
  5. Step 5: Solve for x
    x = 1,729,400,715,885.24/1,294,942.96
  6. Step 6: Final answer
    x = 1,335,503.40

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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.