Finding the Fourth Proportional to 1,340,413.70, 2,010,620.55 and 1,278,205.70
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Solution
The fourth proportional to 1,340,413.70, 2,010,620.55 and 1,278,205.70 is: 1,917,308.55
Step by Step Solution
- Step 1: Write the proportion equation
1,340,413.70 : 2,010,620.55 = 1,278,205.70 : x - Step 2: Convert to fraction form
1,340,413.70/2,010,620.55 = 1,278,205.70/x - Step 3: Cross multiply
1,340,413.70x = 2,010,620.55 × 1,278,205.70 - Step 4: Simplify right side
1,340,413.70x = 2,569,986,647,547.13 - Step 5: Solve for x
x = 2,569,986,647,547.13/1,340,413.70 - Step 6: Final answer
x = 1,917,308.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.