Finding the Fourth Proportional to 852,285.48, 1,278,095.88 and 319,515.72
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Solution
The fourth proportional to 852,285.48, 1,278,095.88 and 319,515.72 is: 479,148.99
Step by Step Solution
- Step 1: Write the proportion equation
852,285.48 : 1,278,095.88 = 319,515.72 : x - Step 2: Convert to fraction form
852,285.48/1,278,095.88 = 319,515.72/x - Step 3: Cross multiply
852,285.48x = 1,278,095.88 × 319,515.72 - Step 4: Simplify right side
852,285.48x = 408,371,725,327.23 - Step 5: Solve for x
x = 408,371,725,327.23/852,285.48 - Step 6: Final answer
x = 479,148.99
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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.