Finding the Fourth Proportional to 812,302.06, 1,121,052.04 and 449,725.91
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Solution
The fourth proportional to 812,302.06, 1,121,052.04 and 449,725.91 is: 620,663.39
Step by Step Solution
- Step 1: Write the proportion equation
812,302.06 : 1,121,052.04 = 449,725.91 : x - Step 2: Convert to fraction form
812,302.06/1,121,052.04 = 449,725.91/x - Step 3: Cross multiply
812,302.06x = 1,121,052.04 × 449,725.91 - Step 4: Simplify right side
812,302.06x = 504,166,149,059.73 - Step 5: Solve for x
x = 504,166,149,059.73/812,302.06 - Step 6: Final answer
x = 620,663.39
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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.