Finding the Fourth Proportional to 821,755.68, 1,134,171.60 and 531,724.32
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Solution
The fourth proportional to 821,755.68, 1,134,171.60 and 531,724.32 is: 733,875.82
Step by Step Solution
- Step 1: Write the proportion equation
821,755.68 : 1,134,171.60 = 531,724.32 : x - Step 2: Convert to fraction form
821,755.68/1,134,171.60 = 531,724.32/x - Step 3: Cross multiply
821,755.68x = 1,134,171.60 × 531,724.32 - Step 4: Simplify right side
821,755.68x = 603,066,622,773.31 - Step 5: Solve for x
x = 603,066,622,773.31/821,755.68 - Step 6: Final answer
x = 733,875.82
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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.