Finding the Fourth Proportional to 3,045,647.93, 4,202,994.17 and 1,687,520.93
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Solution
The fourth proportional to 3,045,647.93, 4,202,994.17 and 1,687,520.93 is: 2,328,778.90
Step by Step Solution
- Step 1: Write the proportion equation
3,045,647.93 : 4,202,994.17 = 1,687,520.93 : x - Step 2: Convert to fraction form
3,045,647.93/4,202,994.17 = 1,687,520.93/x - Step 3: Cross multiply
3,045,647.93x = 4,202,994.17 × 1,687,520.93 - Step 4: Simplify right side
3,045,647.93x = 7,092,640,630,542.98 - Step 5: Solve for x
x = 7,092,640,630,542.98/3,045,647.93 - Step 6: Final answer
x = 2,328,778.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.