Finding the Fourth Proportional to 557,234.03, 768,983.42 and 315,516.99
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Solution
The fourth proportional to 557,234.03, 768,983.42 and 315,516.99 is: 435,413.70
Step by Step Solution
- Step 1: Write the proportion equation
557,234.03 : 768,983.42 = 315,516.99 : x - Step 2: Convert to fraction form
557,234.03/768,983.42 = 315,516.99/x - Step 3: Cross multiply
557,234.03x = 768,983.42 × 315,516.99 - Step 4: Simplify right side
557,234.03x = 242,627,333,385.25 - Step 5: Solve for x
x = 242,627,333,385.25/557,234.03 - Step 6: Final answer
x = 435,413.70
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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.