Finding the Fourth Proportional to 4,752,578.24, 7,129,286.28 and 1,340,894.72
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Solution
The fourth proportional to 4,752,578.24, 7,129,286.28 and 1,340,894.72 is: 2,011,460.27
Step by Step Solution
- Step 1: Write the proportion equation
4,752,578.24 : 7,129,286.28 = 1,340,894.72 : x - Step 2: Convert to fraction form
4,752,578.24/7,129,286.28 = 1,340,894.72/x - Step 3: Cross multiply
4,752,578.24x = 7,129,286.28 × 1,340,894.72 - Step 4: Simplify right side
4,752,578.24x = 9,559,622,330,220.44 - Step 5: Solve for x
x = 9,559,622,330,220.44/4,752,578.24 - Step 6: Final answer
x = 2,011,460.27
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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.