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Finding the Fourth Proportional to 557,496.72, 769,347.54 and 328,062.96

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Solution

The fourth proportional to 557,496.72, 769,347.54 and 328,062.96 is: 452,728.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,496.72 : 769,347.54 = 328,062.96 : x
  2. Step 2: Convert to fraction form
    557,496.72/769,347.54 = 328,062.96/x
  3. Step 3: Cross multiply
    557,496.72x = 769,347.54 × 328,062.96
  4. Step 4: Simplify right side
    557,496.72x = 252,394,431,241.12
  5. Step 5: Solve for x
    x = 252,394,431,241.12/557,496.72
  6. Step 6: Final answer
    x = 452,728.10

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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.