Finding the Fourth Proportional to 1,122,721.84, 1,549,338.06 and 613,413.28
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Solution
The fourth proportional to 1,122,721.84, 1,549,338.06 and 613,413.28 is: 846,500.45
Step by Step Solution
- Step 1: Write the proportion equation
1,122,721.84 : 1,549,338.06 = 613,413.28 : x - Step 2: Convert to fraction form
1,122,721.84/1,549,338.06 = 613,413.28/x - Step 3: Cross multiply
1,122,721.84x = 1,549,338.06 × 613,413.28 - Step 4: Simplify right side
1,122,721.84x = 950,384,541,213.44 - Step 5: Solve for x
x = 950,384,541,213.44/1,122,721.84 - Step 6: Final answer
x = 846,500.45
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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.