Finding the Fourth Proportional to 743,413.92, 1,025,916.12 and 403,882.08
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Solution
The fourth proportional to 743,413.92, 1,025,916.12 and 403,882.08 is: 557,359.94
Step by Step Solution
- Step 1: Write the proportion equation
743,413.92 : 1,025,916.12 = 403,882.08 : x - Step 2: Convert to fraction form
743,413.92/1,025,916.12 = 403,882.08/x - Step 3: Cross multiply
743,413.92x = 1,025,916.12 × 403,882.08 - Step 4: Simplify right side
743,413.92x = 414,349,136,451.13 - Step 5: Solve for x
x = 414,349,136,451.13/743,413.92 - Step 6: Final answer
x = 557,359.94
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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.