Finding the Fourth Proportional to 381,940.87, 571,828.74 and 317,380.63
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Solution
The fourth proportional to 381,940.87, 571,828.74 and 317,380.63 is: 475,171.37
Step by Step Solution
- Step 1: Write the proportion equation
381,940.87 : 571,828.74 = 317,380.63 : x - Step 2: Convert to fraction form
381,940.87/571,828.74 = 317,380.63/x - Step 3: Cross multiply
381,940.87x = 571,828.74 × 317,380.63 - Step 4: Simplify right side
381,940.87x = 181,487,365,753.31 - Step 5: Solve for x
x = 181,487,365,753.31/381,940.87 - Step 6: Final answer
x = 475,171.37
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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.