Finding the Fourth Proportional to 488,739.87, 674,449.74 and 284,777.82
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Solution
The fourth proportional to 488,739.87, 674,449.74 and 284,777.82 is: 392,986.82
Step by Step Solution
- Step 1: Write the proportion equation
488,739.87 : 674,449.74 = 284,777.82 : x - Step 2: Convert to fraction form
488,739.87/674,449.74 = 284,777.82/x - Step 3: Cross multiply
488,739.87x = 674,449.74 × 284,777.82 - Step 4: Simplify right side
488,739.87x = 192,068,326,656.77 - Step 5: Solve for x
x = 192,068,326,656.77/488,739.87 - Step 6: Final answer
x = 392,986.82
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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.