Finding the Fourth Proportional to 1,161,873.05, 1,603,381.64 and 645,624.92
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Solution
The fourth proportional to 1,161,873.05, 1,603,381.64 and 645,624.92 is: 890,960.62
Step by Step Solution
- Step 1: Write the proportion equation
1,161,873.05 : 1,603,381.64 = 645,624.92 : x - Step 2: Convert to fraction form
1,161,873.05/1,603,381.64 = 645,624.92/x - Step 3: Cross multiply
1,161,873.05x = 1,603,381.64 × 645,624.92 - Step 4: Simplify right side
1,161,873.05x = 1,035,183,131,809.44 - Step 5: Solve for x
x = 1,035,183,131,809.44/1,161,873.05 - Step 6: Final answer
x = 890,960.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.