Finding the Fourth Proportional to 1,580,413.22, 2,180,975.64 and 855,260.75
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Solution
The fourth proportional to 1,580,413.22, 2,180,975.64 and 855,260.75 is: 1,180,262.75
Step by Step Solution
- Step 1: Write the proportion equation
1,580,413.22 : 2,180,975.64 = 855,260.75 : x - Step 2: Convert to fraction form
1,580,413.22/2,180,975.64 = 855,260.75/x - Step 3: Cross multiply
1,580,413.22x = 2,180,975.64 × 855,260.75 - Step 4: Simplify right side
1,580,413.22x = 1,865,302,847,486.02 - Step 5: Solve for x
x = 1,865,302,847,486.02/1,580,413.22 - Step 6: Final answer
x = 1,180,262.75
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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.