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Finding the Fourth Proportional to 982,481.28, 1,355,728 and 552,752

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Solution

The fourth proportional to 982,481.28, 1,355,728 and 552,752 is: 762,743.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,481.28 : 1,355,728 = 552,752 : x
  2. Step 2: Convert to fraction form
    982,481.28/1,355,728 = 552,752/x
  3. Step 3: Cross multiply
    982,481.28x = 1,355,728 × 552,752
  4. Step 4: Simplify right side
    982,481.28x = 749,381,363,456
  5. Step 5: Solve for x
    x = 749,381,363,456/982,481.28
  6. Step 6: Final answer
    x = 762,743.66

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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.