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Finding the Fourth Proportional to 538,968.60, 743,775.48 and 324,233.28

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Solution

The fourth proportional to 538,968.60, 743,775.48 and 324,233.28 is: 447,441.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,968.60 : 743,775.48 = 324,233.28 : x
  2. Step 2: Convert to fraction form
    538,968.60/743,775.48 = 324,233.28/x
  3. Step 3: Cross multiply
    538,968.60x = 743,775.48 × 324,233.28
  4. Step 4: Simplify right side
    538,968.60x = 241,156,763,463.97
  5. Step 5: Solve for x
    x = 241,156,763,463.97/538,968.60
  6. Step 6: Final answer
    x = 447,441.21

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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.