Finding the Fourth Proportional to 396,743.68, 547,707.92 and 251,697.62
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Solution
The fourth proportional to 396,743.68, 547,707.92 and 251,697.62 is: 347,470.64
Step by Step Solution
- Step 1: Write the proportion equation
396,743.68 : 547,707.92 = 251,697.62 : x - Step 2: Convert to fraction form
396,743.68/547,707.92 = 251,697.62/x - Step 3: Cross multiply
396,743.68x = 547,707.92 × 251,697.62 - Step 4: Simplify right side
396,743.68x = 137,856,780,029.93 - Step 5: Solve for x
x = 137,856,780,029.93/396,743.68 - Step 6: Final answer
x = 347,470.64
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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.