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Finding the Fourth Proportional to 1,301,353.92, 1,795,867.92 and 728,393.94

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Solution

The fourth proportional to 1,301,353.92, 1,795,867.92 and 728,393.94 is: 1,005,183.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,353.92 : 1,795,867.92 = 728,393.94 : x
  2. Step 2: Convert to fraction form
    1,301,353.92/1,795,867.92 = 728,393.94/x
  3. Step 3: Cross multiply
    1,301,353.92x = 1,795,867.92 × 728,393.94
  4. Step 4: Simplify right side
    1,301,353.92x = 1,308,099,309,968.40
  5. Step 5: Solve for x
    x = 1,308,099,309,968.40/1,301,353.92
  6. Step 6: Final answer
    x = 1,005,183.36

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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.