Finding the Fourth Proportional to 3,678,743.02, 5,518,944.88 and 1,120,186.70
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Solution
The fourth proportional to 3,678,743.02, 5,518,944.88 and 1,120,186.70 is: 1,680,532.89
Step by Step Solution
- Step 1: Write the proportion equation
3,678,743.02 : 5,518,944.88 = 1,120,186.70 : x - Step 2: Convert to fraction form
3,678,743.02/5,518,944.88 = 1,120,186.70/x - Step 3: Cross multiply
3,678,743.02x = 5,518,944.88 × 1,120,186.70 - Step 4: Simplify right side
3,678,743.02x = 6,182,248,652,609.10 - Step 5: Solve for x
x = 6,182,248,652,609.10/3,678,743.02 - Step 6: Final answer
x = 1,680,532.89
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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.