Finding the Fourth Proportional to 853,731.36, 1,178,046.72 and 471,705.84
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Solution
The fourth proportional to 853,731.36, 1,178,046.72 and 471,705.84 is: 650,897.39
Step by Step Solution
- Step 1: Write the proportion equation
853,731.36 : 1,178,046.72 = 471,705.84 : x - Step 2: Convert to fraction form
853,731.36/1,178,046.72 = 471,705.84/x - Step 3: Cross multiply
853,731.36x = 1,178,046.72 × 471,705.84 - Step 4: Simplify right side
853,731.36x = 555,691,517,616.85 - Step 5: Solve for x
x = 555,691,517,616.85/853,731.36 - Step 6: Final answer
x = 650,897.39
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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.