Finding the Fourth Proportional to 991,625.84, 1,487,439.09 and 271,975.04
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Solution
The fourth proportional to 991,625.84, 1,487,439.09 and 271,975.04 is: 407,962.65
Step by Step Solution
- Step 1: Write the proportion equation
991,625.84 : 1,487,439.09 = 271,975.04 : x - Step 2: Convert to fraction form
991,625.84/1,487,439.09 = 271,975.04/x - Step 3: Cross multiply
991,625.84x = 1,487,439.09 × 271,975.04 - Step 4: Simplify right side
991,625.84x = 404,546,306,000.31 - Step 5: Solve for x
x = 404,546,306,000.31/991,625.84 - Step 6: Final answer
x = 407,962.65
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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.