Finding the Fourth Proportional to 642,905.73, 964,161.72 and 444,501.09
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Solution
The fourth proportional to 642,905.73, 964,161.72 and 444,501.09 is: 666,615.52
Step by Step Solution
- Step 1: Write the proportion equation
642,905.73 : 964,161.72 = 444,501.09 : x - Step 2: Convert to fraction form
642,905.73/964,161.72 = 444,501.09/x - Step 3: Cross multiply
642,905.73x = 964,161.72 × 444,501.09 - Step 4: Simplify right side
642,905.73x = 428,570,935,476.28 - Step 5: Solve for x
x = 428,570,935,476.28/642,905.73 - Step 6: Final answer
x = 666,615.52
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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.