Finding the Fourth Proportional to 3,561,897.53, 5,343,413.74 and 1,287,191.68
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Solution
The fourth proportional to 3,561,897.53, 5,343,413.74 and 1,287,191.68 is: 1,930,992.58
Step by Step Solution
- Step 1: Write the proportion equation
3,561,897.53 : 5,343,413.74 = 1,287,191.68 : x - Step 2: Convert to fraction form
3,561,897.53/5,343,413.74 = 1,287,191.68/x - Step 3: Cross multiply
3,561,897.53x = 5,343,413.74 × 1,287,191.68 - Step 4: Simplify right side
3,561,897.53x = 6,877,997,692,349.17 - Step 5: Solve for x
x = 6,877,997,692,349.17/3,561,897.53 - Step 6: Final answer
x = 1,930,992.58
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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.