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Finding the Fourth Proportional to 1,356,584.22, 1,871,968.15 and 744,734.52

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Solution

The fourth proportional to 1,356,584.22, 1,871,968.15 and 744,734.52 is: 1,027,668.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356,584.22 : 1,871,968.15 = 744,734.52 : x
  2. Step 2: Convert to fraction form
    1,356,584.22/1,871,968.15 = 744,734.52/x
  3. Step 3: Cross multiply
    1,356,584.22x = 1,871,968.15 × 744,734.52
  4. Step 4: Simplify right side
    1,356,584.22x = 1,394,119,299,783.70
  5. Step 5: Solve for x
    x = 1,394,119,299,783.70/1,356,584.22
  6. Step 6: Final answer
    x = 1,027,668.82

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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.