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Finding the Fourth Proportional to 538,485.48, 743,076.59 and 296,754.56

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Solution

The fourth proportional to 538,485.48, 743,076.59 and 296,754.56 is: 409,502.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,485.48 : 743,076.59 = 296,754.56 : x
  2. Step 2: Convert to fraction form
    538,485.48/743,076.59 = 296,754.56/x
  3. Step 3: Cross multiply
    538,485.48x = 743,076.59 × 296,754.56
  4. Step 4: Simplify right side
    538,485.48x = 220,511,361,312.60
  5. Step 5: Solve for x
    x = 220,511,361,312.60/538,485.48
  6. Step 6: Final answer
    x = 409,502.89

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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.