Finding the Fourth Proportional to 613,613.40, 846,889.74 and 395,760.84
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Solution
The fourth proportional to 613,613.40, 846,889.74 and 395,760.84 is: 546,216.55
Step by Step Solution
- Step 1: Write the proportion equation
613,613.40 : 846,889.74 = 395,760.84 : x - Step 2: Convert to fraction form
613,613.40/846,889.74 = 395,760.84/x - Step 3: Cross multiply
613,613.40x = 846,889.74 × 395,760.84 - Step 4: Simplify right side
613,613.40x = 335,165,794,889.78 - Step 5: Solve for x
x = 335,165,794,889.78/613,613.40 - Step 6: Final answer
x = 546,216.55
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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.