Finding the Fourth Proportional to 557,511.26, 769,310.06 and 315,745.70
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Solution
The fourth proportional to 557,511.26, 769,310.06 and 315,745.70 is: 435,697.64
Step by Step Solution
- Step 1: Write the proportion equation
557,511.26 : 769,310.06 = 315,745.70 : x - Step 2: Convert to fraction form
557,511.26/769,310.06 = 315,745.70/x - Step 3: Cross multiply
557,511.26x = 769,310.06 × 315,745.70 - Step 4: Simplify right side
557,511.26x = 242,906,337,986.46 - Step 5: Solve for x
x = 242,906,337,986.46/557,511.26 - Step 6: Final answer
x = 435,697.64
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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.