Finding the Fourth Proportional to 842,722.18, 1,264,078.41 and 281,751.82
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Solution
The fourth proportional to 842,722.18, 1,264,078.41 and 281,751.82 is: 422,626.11
Step by Step Solution
- Step 1: Write the proportion equation
842,722.18 : 1,264,078.41 = 281,751.82 : x - Step 2: Convert to fraction form
842,722.18/1,264,078.41 = 281,751.82/x - Step 3: Cross multiply
842,722.18x = 1,264,078.41 × 281,751.82 - Step 4: Simplify right side
842,722.18x = 356,156,392,640.21 - Step 5: Solve for x
x = 356,156,392,640.21/842,722.18 - Step 6: Final answer
x = 422,626.11
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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.