Finding the Fourth Proportional to 496,354.88, 685,207.68 and 305,531.84
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Solution
The fourth proportional to 496,354.88, 685,207.68 and 305,531.84 is: 421,780.41
Step by Step Solution
- Step 1: Write the proportion equation
496,354.88 : 685,207.68 = 305,531.84 : x - Step 2: Convert to fraction form
496,354.88/685,207.68 = 305,531.84/x - Step 3: Cross multiply
496,354.88x = 685,207.68 × 305,531.84 - Step 4: Simplify right side
496,354.88x = 209,352,763,252.53 - Step 5: Solve for x
x = 209,352,763,252.53/496,354.88 - Step 6: Final answer
x = 421,780.41
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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.