Finding the Fourth Proportional to 813,015.23, 1,218,192.45 and 492,194.68
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Solution
The fourth proportional to 813,015.23, 1,218,192.45 and 492,194.68 is: 737,486.61
Step by Step Solution
- Step 1: Write the proportion equation
813,015.23 : 1,218,192.45 = 492,194.68 : x - Step 2: Convert to fraction form
813,015.23/1,218,192.45 = 492,194.68/x - Step 3: Cross multiply
813,015.23x = 1,218,192.45 × 492,194.68 - Step 4: Simplify right side
813,015.23x = 599,587,838,214.96 - Step 5: Solve for x
x = 599,587,838,214.96/813,015.23 - Step 6: Final answer
x = 737,486.61
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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.