Finding the Fourth Proportional to 661,283.21, 992,205.65 and 361,413.44
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Solution
The fourth proportional to 661,283.21, 992,205.65 and 361,413.44 is: 542,273.65
Step by Step Solution
- Step 1: Write the proportion equation
661,283.21 : 992,205.65 = 361,413.44 : x - Step 2: Convert to fraction form
661,283.21/992,205.65 = 361,413.44/x - Step 3: Cross multiply
661,283.21x = 992,205.65 × 361,413.44 - Step 4: Simplify right side
661,283.21x = 358,596,460,537.98 - Step 5: Solve for x
x = 358,596,460,537.98/661,283.21 - Step 6: Final answer
x = 542,273.65
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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.