Finding the Fourth Proportional to 379,747.48, 524,062.02 and 209,987.68
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Solution
The fourth proportional to 379,747.48, 524,062.02 and 209,987.68 is: 289,788.80
Step by Step Solution
- Step 1: Write the proportion equation
379,747.48 : 524,062.02 = 209,987.68 : x - Step 2: Convert to fraction form
379,747.48/524,062.02 = 209,987.68/x - Step 3: Cross multiply
379,747.48x = 524,062.02 × 209,987.68 - Step 4: Simplify right side
379,747.48x = 110,046,567,755.91 - Step 5: Solve for x
x = 110,046,567,755.91/379,747.48 - Step 6: Final answer
x = 289,788.80
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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.