Finding the Fourth Proportional to 1,580,413.87, 2,180,977.79 and 855,261.62
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Solution
The fourth proportional to 1,580,413.87, 2,180,977.79 and 855,261.62 is: 1,180,264.63
Step by Step Solution
- Step 1: Write the proportion equation
1,580,413.87 : 2,180,977.79 = 855,261.62 : x - Step 2: Convert to fraction form
1,580,413.87/2,180,977.79 = 855,261.62/x - Step 3: Cross multiply
1,580,413.87x = 2,180,977.79 × 855,261.62 - Step 4: Simplify right side
1,580,413.87x = 1,865,306,593,583.11 - Step 5: Solve for x
x = 1,865,306,593,583.11/1,580,413.87 - Step 6: Final answer
x = 1,180,264.63
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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.