Finding the Fourth Proportional to 672,115.84, 927,862.67 and 455,469.07
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Solution
The fourth proportional to 672,115.84, 927,862.67 and 455,469.07 is: 628,779.63
Step by Step Solution
- Step 1: Write the proportion equation
672,115.84 : 927,862.67 = 455,469.07 : x - Step 2: Convert to fraction form
672,115.84/927,862.67 = 455,469.07/x - Step 3: Cross multiply
672,115.84x = 927,862.67 × 455,469.07 - Step 4: Simplify right side
672,115.84x = 422,612,747,392.62 - Step 5: Solve for x
x = 422,612,747,392.62/672,115.84 - Step 6: Final answer
x = 628,779.63
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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.