Finding the Fourth Proportional to 658,912.33, 987,239.07 and 442,365.49
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Solution
The fourth proportional to 658,912.33, 987,239.07 and 442,365.49 is: 662,789.99
Step by Step Solution
- Step 1: Write the proportion equation
658,912.33 : 987,239.07 = 442,365.49 : x - Step 2: Convert to fraction form
658,912.33/987,239.07 = 442,365.49/x - Step 3: Cross multiply
658,912.33x = 987,239.07 × 442,365.49 - Step 4: Simplify right side
658,912.33x = 436,720,494,947.69 - Step 5: Solve for x
x = 436,720,494,947.69/658,912.33 - Step 6: Final answer
x = 662,789.99
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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.