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Finding the Fourth Proportional to 1,323,857.32, 1,826,845.86 and 743,026.48

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Solution

The fourth proportional to 1,323,857.32, 1,826,845.86 and 743,026.48 is: 1,025,333.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,857.32 : 1,826,845.86 = 743,026.48 : x
  2. Step 2: Convert to fraction form
    1,323,857.32/1,826,845.86 = 743,026.48/x
  3. Step 3: Cross multiply
    1,323,857.32x = 1,826,845.86 × 743,026.48
  4. Step 4: Simplify right side
    1,323,857.32x = 1,357,394,848,858.37
  5. Step 5: Solve for x
    x = 1,357,394,848,858.37/1,323,857.32
  6. Step 6: Final answer
    x = 1,025,333.19

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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.