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Finding the Fourth Proportional to 1,281,969.93, 1,769,663.23 and 798,773.81

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Solution

The fourth proportional to 1,281,969.93, 1,769,663.23 and 798,773.81 is: 1,102,647.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,969.93 : 1,769,663.23 = 798,773.81 : x
  2. Step 2: Convert to fraction form
    1,281,969.93/1,769,663.23 = 798,773.81/x
  3. Step 3: Cross multiply
    1,281,969.93x = 1,769,663.23 × 798,773.81
  4. Step 4: Simplify right side
    1,281,969.93x = 1,413,560,640,634.31
  5. Step 5: Solve for x
    x = 1,413,560,640,634.31/1,281,969.93
  6. Step 6: Final answer
    x = 1,102,647.27

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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.