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Finding the Fourth Proportional to 1,295,999.97, 1,788,481.08 and 723,040.26

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Solution

The fourth proportional to 1,295,999.97, 1,788,481.08 and 723,040.26 is: 997,796.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,999.97 : 1,788,481.08 = 723,040.26 : x
  2. Step 2: Convert to fraction form
    1,295,999.97/1,788,481.08 = 723,040.26/x
  3. Step 3: Cross multiply
    1,295,999.97x = 1,788,481.08 × 723,040.26
  4. Step 4: Simplify right side
    1,295,999.97x = 1,293,143,825,088.28
  5. Step 5: Solve for x
    x = 1,293,143,825,088.28/1,295,999.97
  6. Step 6: Final answer
    x = 997,796.18

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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.