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Finding the Fourth Proportional to 988,382.81, 1,482,759.81 and 448,676.97

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Solution

The fourth proportional to 988,382.81, 1,482,759.81 and 448,676.97 is: 673,099.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,382.81 : 1,482,759.81 = 448,676.97 : x
  2. Step 2: Convert to fraction form
    988,382.81/1,482,759.81 = 448,676.97/x
  3. Step 3: Cross multiply
    988,382.81x = 1,482,759.81 × 448,676.97
  4. Step 4: Simplify right side
    988,382.81x = 665,280,178,788.58
  5. Step 5: Solve for x
    x = 665,280,178,788.58/988,382.81
  6. Step 6: Final answer
    x = 673,099.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.