Finding the Fourth Proportional to 636,346.44, 878,160.96 and 345,960.84
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Solution
The fourth proportional to 636,346.44, 878,160.96 and 345,960.84 is: 477,427.52
Step by Step Solution
- Step 1: Write the proportion equation
636,346.44 : 878,160.96 = 345,960.84 : x - Step 2: Convert to fraction form
636,346.44/878,160.96 = 345,960.84/x - Step 3: Cross multiply
636,346.44x = 878,160.96 × 345,960.84 - Step 4: Simplify right side
636,346.44x = 303,809,303,376.81 - Step 5: Solve for x
x = 303,809,303,376.81/636,346.44 - Step 6: Final answer
x = 477,427.52
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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.