Finding the Fourth Proportional to 612,387.28, 916,615.50 and 327,365.08
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Solution
The fourth proportional to 612,387.28, 916,615.50 and 327,365.08 is: 489,996.96
Step by Step Solution
- Step 1: Write the proportion equation
612,387.28 : 916,615.50 = 327,365.08 : x - Step 2: Convert to fraction form
612,387.28/916,615.50 = 327,365.08/x - Step 3: Cross multiply
612,387.28x = 916,615.50 × 327,365.08 - Step 4: Simplify right side
612,387.28x = 300,067,906,486.74 - Step 5: Solve for x
x = 300,067,906,486.74/612,387.28 - Step 6: Final answer
x = 489,996.96
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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.