Finding the Fourth Proportional to 812,045.12, 1,120,593.66 and 449,469.68
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Solution
The fourth proportional to 812,045.12, 1,120,593.66 and 449,469.68 is: 620,252.33
Step by Step Solution
- Step 1: Write the proportion equation
812,045.12 : 1,120,593.66 = 449,469.68 : x - Step 2: Convert to fraction form
812,045.12/1,120,593.66 = 449,469.68/x - Step 3: Cross multiply
812,045.12x = 1,120,593.66 × 449,469.68 - Step 4: Simplify right side
812,045.12x = 503,672,873,770.23 - Step 5: Solve for x
x = 503,672,873,770.23/812,045.12 - Step 6: Final answer
x = 620,252.33
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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.