Finding the Fourth Proportional to 1,285,269.60, 1,916,413.76 and 1,249,957.84
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Solution
The fourth proportional to 1,285,269.60, 1,916,413.76 and 1,249,957.84 is: 1,863,761.81
Step by Step Solution
- Step 1: Write the proportion equation
1,285,269.60 : 1,916,413.76 = 1,249,957.84 : x - Step 2: Convert to fraction form
1,285,269.60/1,916,413.76 = 1,249,957.84/x - Step 3: Cross multiply
1,285,269.60x = 1,916,413.76 × 1,249,957.84 - Step 4: Simplify right side
1,285,269.60x = 2,395,436,393,502.09 - Step 5: Solve for x
x = 2,395,436,393,502.09/1,285,269.60 - Step 6: Final answer
x = 1,863,761.81
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.