Finding the Fourth Proportional to 557,413.92, 769,278.60 and 315,739.62
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Solution
The fourth proportional to 557,413.92, 769,278.60 and 315,739.62 is: 435,747.52
Step by Step Solution
- Step 1: Write the proportion equation
557,413.92 : 769,278.60 = 315,739.62 : x - Step 2: Convert to fraction form
557,413.92/769,278.60 = 315,739.62/x - Step 3: Cross multiply
557,413.92x = 769,278.60 × 315,739.62 - Step 4: Simplify right side
557,413.92x = 242,891,732,838.13 - Step 5: Solve for x
x = 242,891,732,838.13/557,413.92 - Step 6: Final answer
x = 435,747.52
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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.