Finding the Fourth Proportional to 821,769.87, 1,134,039.94 and 459,194.08
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Solution
The fourth proportional to 821,769.87, 1,134,039.94 and 459,194.08 is: 633,686.44
Step by Step Solution
- Step 1: Write the proportion equation
821,769.87 : 1,134,039.94 = 459,194.08 : x - Step 2: Convert to fraction form
821,769.87/1,134,039.94 = 459,194.08/x - Step 3: Cross multiply
821,769.87x = 1,134,039.94 × 459,194.08 - Step 4: Simplify right side
821,769.87x = 520,744,427,657.76 - Step 5: Solve for x
x = 520,744,427,657.76/821,769.87 - Step 6: Final answer
x = 633,686.44
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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.