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Finding the Fourth Proportional to 482,420.37, 665,780.99 and 267,629.63

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Solution

The fourth proportional to 482,420.37, 665,780.99 and 267,629.63 is: 369,351.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,420.37 : 665,780.99 = 267,629.63 : x
  2. Step 2: Convert to fraction form
    482,420.37/665,780.99 = 267,629.63/x
  3. Step 3: Cross multiply
    482,420.37x = 665,780.99 × 267,629.63
  4. Step 4: Simplify right side
    482,420.37x = 178,182,715,347.68
  5. Step 5: Solve for x
    x = 178,182,715,347.68/482,420.37
  6. Step 6: Final answer
    x = 369,351.56

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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.