Finding the Fourth Proportional to 3,178,051.20, 4,762,929.60 and 1,471,996.80
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Solution
The fourth proportional to 3,178,051.20, 4,762,929.60 and 1,471,996.80 is: 2,206,074.32
Step by Step Solution
- Step 1: Write the proportion equation
3,178,051.20 : 4,762,929.60 = 1,471,996.80 : x - Step 2: Convert to fraction form
3,178,051.20/4,762,929.60 = 1,471,996.80/x - Step 3: Cross multiply
3,178,051.20x = 4,762,929.60 × 1,471,996.80 - Step 4: Simplify right side
3,178,051.20x = 7,011,017,129,825.28 - Step 5: Solve for x
x = 7,011,017,129,825.28/3,178,051.20 - Step 6: Final answer
x = 2,206,074.32
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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.