Finding the Fourth Proportional to 685,717.26, 1,028,643.60 and 236,378.94
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Solution
The fourth proportional to 685,717.26, 1,028,643.60 and 236,378.94 is: 354,591.75
Step by Step Solution
- Step 1: Write the proportion equation
685,717.26 : 1,028,643.60 = 236,378.94 : x - Step 2: Convert to fraction form
685,717.26/1,028,643.60 = 236,378.94/x - Step 3: Cross multiply
685,717.26x = 1,028,643.60 × 236,378.94 - Step 4: Simplify right side
685,717.26x = 243,149,683,805.78 - Step 5: Solve for x
x = 243,149,683,805.78/685,717.26 - Step 6: Final answer
x = 354,591.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.