Finding the Fourth Proportional to 638,132.90, 880,611.99 and 347,747.00
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Solution
The fourth proportional to 638,132.90, 880,611.99 and 347,747.00 is: 479,884.64
Step by Step Solution
- Step 1: Write the proportion equation
638,132.90 : 880,611.99 = 347,747.00 : x - Step 2: Convert to fraction form
638,132.90/880,611.99 = 347,747.00/x - Step 3: Cross multiply
638,132.90x = 880,611.99 × 347,747.00 - Step 4: Simplify right side
638,132.90x = 306,230,173,283.47 - Step 5: Solve for x
x = 306,230,173,283.47/638,132.90 - Step 6: Final answer
x = 479,884.64
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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.