Finding the Fourth Proportional to 4,578,771.90, 6,318,729.63 and 2,860,888.62
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Solution
The fourth proportional to 4,578,771.90, 6,318,729.63 and 2,860,888.62 is: 3,948,041.55
Step by Step Solution
- Step 1: Write the proportion equation
4,578,771.90 : 6,318,729.63 = 2,860,888.62 : x - Step 2: Convert to fraction form
4,578,771.90/6,318,729.63 = 2,860,888.62/x - Step 3: Cross multiply
4,578,771.90x = 6,318,729.63 × 2,860,888.62 - Step 4: Simplify right side
4,578,771.90x = 18,077,181,691,323.81 - Step 5: Solve for x
x = 18,077,181,691,323.81/4,578,771.90 - Step 6: Final answer
x = 3,948,041.55
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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.