Finding the Fourth Proportional to 4,118,853.20, 6,179,446.20 and 1,279,252.40
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Solution
The fourth proportional to 4,118,853.20, 6,179,446.20 and 1,279,252.40 is: 1,919,240.87
Step by Step Solution
- Step 1: Write the proportion equation
4,118,853.20 : 6,179,446.20 = 1,279,252.40 : x - Step 2: Convert to fraction form
4,118,853.20/6,179,446.20 = 1,279,252.40/x - Step 3: Cross multiply
4,118,853.20x = 6,179,446.20 × 1,279,252.40 - Step 4: Simplify right side
4,118,853.20x = 7,905,071,382,020.88 - Step 5: Solve for x
x = 7,905,071,382,020.88/4,118,853.20 - Step 6: Final answer
x = 1,919,240.87
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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.