Finding the Fourth Proportional to 831,845.10, 1,247,763.60 and 326,048.70
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Solution
The fourth proportional to 831,845.10, 1,247,763.60 and 326,048.70 is: 489,071.46
Step by Step Solution
- Step 1: Write the proportion equation
831,845.10 : 1,247,763.60 = 326,048.70 : x - Step 2: Convert to fraction form
831,845.10/1,247,763.60 = 326,048.70/x - Step 3: Cross multiply
831,845.10x = 1,247,763.60 × 326,048.70 - Step 4: Simplify right side
831,845.10x = 406,831,699,687.32 - Step 5: Solve for x
x = 406,831,699,687.32/831,845.10 - Step 6: Final answer
x = 489,071.46
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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.