Finding the Fourth Proportional to 4,479,791.12, 6,717,191.12 and 2,658,895.28
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Solution
The fourth proportional to 4,479,791.12, 6,717,191.12 and 2,658,895.28 is: 3,986,861.73
Step by Step Solution
- Step 1: Write the proportion equation
4,479,791.12 : 6,717,191.12 = 2,658,895.28 : x - Step 2: Convert to fraction form
4,479,791.12/6,717,191.12 = 2,658,895.28/x - Step 3: Cross multiply
4,479,791.12x = 6,717,191.12 × 2,658,895.28 - Step 4: Simplify right side
4,479,791.12x = 17,860,307,763,825.91 - Step 5: Solve for x
x = 17,860,307,763,825.91/4,479,791.12 - Step 6: Final answer
x = 3,986,861.73
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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.