Finding the Fourth Proportional to 4,578,791.40, 6,318,756.54 and 2,860,908.12
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Solution
The fourth proportional to 4,578,791.40, 6,318,756.54 and 2,860,908.12 is: 3,948,068.46
Step by Step Solution
- Step 1: Write the proportion equation
4,578,791.40 : 6,318,756.54 = 2,860,908.12 : x - Step 2: Convert to fraction form
4,578,791.40/6,318,756.54 = 2,860,908.12/x - Step 3: Cross multiply
4,578,791.40x = 6,318,756.54 × 2,860,908.12 - Step 4: Simplify right side
4,578,791.40x = 18,077,381,893,589.11 - Step 5: Solve for x
x = 18,077,381,893,589.11/4,578,791.40 - Step 6: Final answer
x = 3,948,068.46
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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.