Finding the Fourth Proportional to 788,783.94, 1,088,578.80 and 449,252.10
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Solution
The fourth proportional to 788,783.94, 1,088,578.80 and 449,252.10 is: 620,000.34
Step by Step Solution
- Step 1: Write the proportion equation
788,783.94 : 1,088,578.80 = 449,252.10 : x - Step 2: Convert to fraction form
788,783.94/1,088,578.80 = 449,252.10/x - Step 3: Cross multiply
788,783.94x = 1,088,578.80 × 449,252.10 - Step 4: Simplify right side
788,783.94x = 489,046,311,915.48 - Step 5: Solve for x
x = 489,046,311,915.48/788,783.94 - Step 6: Final answer
x = 620,000.34
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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.