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Finding the Fourth Proportional to 552,968.87, 763,221.48 and 361,871.54

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Solution

The fourth proportional to 552,968.87, 763,221.48 and 361,871.54 is: 499,464.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,968.87 : 763,221.48 = 361,871.54 : x
  2. Step 2: Convert to fraction form
    552,968.87/763,221.48 = 361,871.54/x
  3. Step 3: Cross multiply
    552,968.87x = 763,221.48 × 361,871.54
  4. Step 4: Simplify right side
    552,968.87x = 276,188,128,512.57
  5. Step 5: Solve for x
    x = 276,188,128,512.57/552,968.87
  6. Step 6: Final answer
    x = 499,464.16

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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.