Finding the Fourth Proportional to 698,155.38, 963,167.49 and 443,413.62
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Solution
The fourth proportional to 698,155.38, 963,167.49 and 443,413.62 is: 611,728.56
Step by Step Solution
- Step 1: Write the proportion equation
698,155.38 : 963,167.49 = 443,413.62 : x - Step 2: Convert to fraction form
698,155.38/963,167.49 = 443,413.62/x - Step 3: Cross multiply
698,155.38x = 963,167.49 × 443,413.62 - Step 4: Simplify right side
698,155.38x = 427,081,583,407.21 - Step 5: Solve for x
x = 427,081,583,407.21/698,155.38 - Step 6: Final answer
x = 611,728.56
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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.