Finding the Fourth Proportional to 1,913,566.60, 2,866,413.30 and 1,315,203.40
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Solution
The fourth proportional to 1,913,566.60, 2,866,413.30 and 1,315,203.40 is: 1,970,099.46
Step by Step Solution
- Step 1: Write the proportion equation
1,913,566.60 : 2,866,413.30 = 1,315,203.40 : x - Step 2: Convert to fraction form
1,913,566.60/2,866,413.30 = 1,315,203.40/x - Step 3: Cross multiply
1,913,566.60x = 2,866,413.30 × 1,315,203.40 - Step 4: Simplify right side
1,913,566.60x = 3,769,916,517,965.22 - Step 5: Solve for x
x = 3,769,916,517,965.22/1,913,566.60 - Step 6: Final answer
x = 1,970,099.46
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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.