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Finding the Fourth Proportional to 1,313,984.63, 1,968,420.56 and 863,336.27

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Solution

The fourth proportional to 1,313,984.63, 1,968,420.56 and 863,336.27 is: 1,293,324.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,984.63 : 1,968,420.56 = 863,336.27 : x
  2. Step 2: Convert to fraction form
    1,313,984.63/1,968,420.56 = 863,336.27/x
  3. Step 3: Cross multiply
    1,313,984.63x = 1,968,420.56 × 863,336.27
  4. Step 4: Simplify right side
    1,313,984.63x = 1,699,408,849,902.93
  5. Step 5: Solve for x
    x = 1,699,408,849,902.93/1,313,984.63
  6. Step 6: Final answer
    x = 1,293,324.76

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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.