Finding the Fourth Proportional to 668,715.70, 922,827.56 and 382,241.94
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Solution
The fourth proportional to 668,715.70, 922,827.56 and 382,241.94 is: 527,493.82
Step by Step Solution
- Step 1: Write the proportion equation
668,715.70 : 922,827.56 = 382,241.94 : x - Step 2: Convert to fraction form
668,715.70/922,827.56 = 382,241.94/x - Step 3: Cross multiply
668,715.70x = 922,827.56 × 382,241.94 - Step 4: Simplify right side
668,715.70x = 352,743,396,819.87 - Step 5: Solve for x
x = 352,743,396,819.87/668,715.70 - Step 6: Final answer
x = 527,493.82
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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.