Finding the Fourth Proportional to 5,264,891.12, 7,897,818.64 and 1,478,348.48
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Solution
The fourth proportional to 5,264,891.12, 7,897,818.64 and 1,478,348.48 is: 2,217,658.05
Step by Step Solution
- Step 1: Write the proportion equation
5,264,891.12 : 7,897,818.64 = 1,478,348.48 : x - Step 2: Convert to fraction form
5,264,891.12/7,897,818.64 = 1,478,348.48/x - Step 3: Cross multiply
5,264,891.12x = 7,897,818.64 × 1,478,348.48 - Step 4: Simplify right side
5,264,891.12x = 11,675,728,181,759.67 - Step 5: Solve for x
x = 11,675,728,181,759.67/5,264,891.12 - Step 6: Final answer
x = 2,217,658.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.