Finding the Fourth Proportional to 638,136.28, 880,629.62 and 347,750.04
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Solution
The fourth proportional to 638,136.28, 880,629.62 and 347,750.04 is: 479,895.90
Step by Step Solution
- Step 1: Write the proportion equation
638,136.28 : 880,629.62 = 347,750.04 : x - Step 2: Convert to fraction form
638,136.28/880,629.62 = 347,750.04/x - Step 3: Cross multiply
638,136.28x = 880,629.62 × 347,750.04 - Step 4: Simplify right side
638,136.28x = 306,238,985,580.19 - Step 5: Solve for x
x = 306,238,985,580.19/638,136.28 - Step 6: Final answer
x = 479,895.90
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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.