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Finding the Fourth Proportional to 557,871.72, 769,863.96 and 303,222.24

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Solution

The fourth proportional to 557,871.72, 769,863.96 and 303,222.24 is: 418,447.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,871.72 : 769,863.96 = 303,222.24 : x
  2. Step 2: Convert to fraction form
    557,871.72/769,863.96 = 303,222.24/x
  3. Step 3: Cross multiply
    557,871.72x = 769,863.96 × 303,222.24
  4. Step 4: Simplify right side
    557,871.72x = 233,439,874,446.47
  5. Step 5: Solve for x
    x = 233,439,874,446.47/557,871.72
  6. Step 6: Final answer
    x = 418,447.23

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.