Finding the Fourth Proportional to 3,678,268.70, 5,518,197.22 and 1,119,683.72
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Solution
The fourth proportional to 3,678,268.70, 5,518,197.22 and 1,119,683.72 is: 1,679,767.33
Step by Step Solution
- Step 1: Write the proportion equation
3,678,268.70 : 5,518,197.22 = 1,119,683.72 : x - Step 2: Convert to fraction form
3,678,268.70/5,518,197.22 = 1,119,683.72/x - Step 3: Cross multiply
3,678,268.70x = 5,518,197.22 × 1,119,683.72 - Step 4: Simplify right side
3,678,268.70x = 6,178,635,590,983.26 - Step 5: Solve for x
x = 6,178,635,590,983.26/3,678,268.70 - Step 6: Final answer
x = 1,679,767.33
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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.