Finding the Fourth Proportional to 492,905.70, 738,811.80 and 193,286.70
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Solution
The fourth proportional to 492,905.70, 738,811.80 and 193,286.70 is: 289,715.65
Step by Step Solution
- Step 1: Write the proportion equation
492,905.70 : 738,811.80 = 193,286.70 : x - Step 2: Convert to fraction form
492,905.70/738,811.80 = 193,286.70/x - Step 3: Cross multiply
492,905.70x = 738,811.80 × 193,286.70 - Step 4: Simplify right side
492,905.70x = 142,802,494,743.06 - Step 5: Solve for x
x = 142,802,494,743.06/492,905.70 - Step 6: Final answer
x = 289,715.65
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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.