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Finding the Fourth Proportional to 511,851.67, 762,523.43 and 488,822.56

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Solution

The fourth proportional to 511,851.67, 762,523.43 and 488,822.56 is: 728,216.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,851.67 : 762,523.43 = 488,822.56 : x
  2. Step 2: Convert to fraction form
    511,851.67/762,523.43 = 488,822.56/x
  3. Step 3: Cross multiply
    511,851.67x = 762,523.43 × 488,822.56
  4. Step 4: Simplify right side
    511,851.67x = 372,738,655,112.58
  5. Step 5: Solve for x
    x = 372,738,655,112.58/511,851.67
  6. Step 6: Final answer
    x = 728,216.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.