Finding the Fourth Proportional to 815,836.22, 1,125,787.98 and 471,694.23
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Solution
The fourth proportional to 815,836.22, 1,125,787.98 and 471,694.23 is: 650,899.88
Step by Step Solution
- Step 1: Write the proportion equation
815,836.22 : 1,125,787.98 = 471,694.23 : x - Step 2: Convert to fraction form
815,836.22/1,125,787.98 = 471,694.23/x - Step 3: Cross multiply
815,836.22x = 1,125,787.98 × 471,694.23 - Step 4: Simplify right side
815,836.22x = 531,027,694,369.36 - Step 5: Solve for x
x = 531,027,694,369.36/815,836.22 - Step 6: Final answer
x = 650,899.88
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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.