Finding the Fourth Proportional to 805,997.68, 1,112,276.79 and 443,413.75
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Solution
The fourth proportional to 805,997.68, 1,112,276.79 and 443,413.75 is: 611,910.97
Step by Step Solution
- Step 1: Write the proportion equation
805,997.68 : 1,112,276.79 = 443,413.75 : x - Step 2: Convert to fraction form
805,997.68/1,112,276.79 = 443,413.75/x - Step 3: Cross multiply
805,997.68x = 1,112,276.79 × 443,413.75 - Step 4: Simplify right side
805,997.68x = 493,198,822,491.86 - Step 5: Solve for x
x = 493,198,822,491.86/805,997.68 - Step 6: Final answer
x = 611,910.97
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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.