Finding the Fourth Proportional to 812,042.24, 1,120,608.96 and 449,466.80
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Solution
The fourth proportional to 812,042.24, 1,120,608.96 and 449,466.80 is: 620,259.02
Step by Step Solution
- Step 1: Write the proportion equation
812,042.24 : 1,120,608.96 = 449,466.80 : x - Step 2: Convert to fraction form
812,042.24/1,120,608.96 = 449,466.80/x - Step 3: Cross multiply
812,042.24x = 1,120,608.96 × 449,466.80 - Step 4: Simplify right side
812,042.24x = 503,676,523,302.53 - Step 5: Solve for x
x = 503,676,523,302.53/812,042.24 - Step 6: Final answer
x = 620,259.02
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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.