Finding the Fourth Proportional to 809,439.62, 1,117,020.42 and 446,864
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Solution
The fourth proportional to 809,439.62, 1,117,020.42 and 446,864 is: 616,668.87
Step by Step Solution
- Step 1: Write the proportion equation
809,439.62 : 1,117,020.42 = 446,864 : x - Step 2: Convert to fraction form
809,439.62/1,117,020.42 = 446,864/x - Step 3: Cross multiply
809,439.62x = 1,117,020.42 × 446,864 - Step 4: Simplify right side
809,439.62x = 499,156,212,962.88 - Step 5: Solve for x
x = 499,156,212,962.88/809,439.62 - Step 6: Final answer
x = 616,668.87
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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.