Finding the Fourth Proportional to 395,212.91, 545,708.21 and 364,987.17
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Solution
The fourth proportional to 395,212.91, 545,708.21 and 364,987.17 is: 503,972.65
Step by Step Solution
- Step 1: Write the proportion equation
395,212.91 : 545,708.21 = 364,987.17 : x - Step 2: Convert to fraction form
395,212.91/545,708.21 = 364,987.17/x - Step 3: Cross multiply
395,212.91x = 545,708.21 × 364,987.17 - Step 4: Simplify right side
395,212.91x = 199,176,493,388.73 - Step 5: Solve for x
x = 199,176,493,388.73/395,212.91 - Step 6: Final answer
x = 503,972.65
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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.