Finding the Fourth Proportional to 667,507.03, 921,160.76 and 395,708.49
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Solution
The fourth proportional to 667,507.03, 921,160.76 and 395,708.49 is: 546,078.34
Step by Step Solution
- Step 1: Write the proportion equation
667,507.03 : 921,160.76 = 395,708.49 : x - Step 2: Convert to fraction form
667,507.03/921,160.76 = 395,708.49/x - Step 3: Cross multiply
667,507.03x = 921,160.76 × 395,708.49 - Step 4: Simplify right side
667,507.03x = 364,511,131,408.31 - Step 5: Solve for x
x = 364,511,131,408.31/667,507.03 - Step 6: Final answer
x = 546,078.34
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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.