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Finding the Fourth Proportional to 1,356,583.97, 1,871,967.81 and 744,734.27

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Solution

The fourth proportional to 1,356,583.97, 1,871,967.81 and 744,734.27 is: 1,027,668.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356,583.97 : 1,871,967.81 = 744,734.27 : x
  2. Step 2: Convert to fraction form
    1,356,583.97/1,871,967.81 = 744,734.27/x
  3. Step 3: Cross multiply
    1,356,583.97x = 1,871,967.81 × 744,734.27
  4. Step 4: Simplify right side
    1,356,583.97x = 1,394,118,567,360.34
  5. Step 5: Solve for x
    x = 1,394,118,567,360.34/1,356,583.97
  6. Step 6: Final answer
    x = 1,027,668.47

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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.