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Finding the Fourth Proportional to 1,301,433.28, 1,795,448.64 and 817,843.84

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Solution

The fourth proportional to 1,301,433.28, 1,795,448.64 and 817,843.84 is: 1,128,291.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,433.28 : 1,795,448.64 = 817,843.84 : x
  2. Step 2: Convert to fraction form
    1,301,433.28/1,795,448.64 = 817,843.84/x
  3. Step 3: Cross multiply
    1,301,433.28x = 1,795,448.64 × 817,843.84
  4. Step 4: Simplify right side
    1,301,433.28x = 1,468,396,610,260.38
  5. Step 5: Solve for x
    x = 1,468,396,610,260.38/1,301,433.28
  6. Step 6: Final answer
    x = 1,128,291.89

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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.