Finding the Fourth Proportional to 568,052.21, 783,815.70 and 338,605.38
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Solution
The fourth proportional to 568,052.21, 783,815.70 and 338,605.38 is: 467,217.99
Step by Step Solution
- Step 1: Write the proportion equation
568,052.21 : 783,815.70 = 338,605.38 : x - Step 2: Convert to fraction form
568,052.21/783,815.70 = 338,605.38/x - Step 3: Cross multiply
568,052.21x = 783,815.70 × 338,605.38 - Step 4: Simplify right side
568,052.21x = 265,404,212,258.70 - Step 5: Solve for x
x = 265,404,212,258.70/568,052.21 - Step 6: Final answer
x = 467,217.99
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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.