Finding the Fourth Proportional to 1,147,474.08, 1,583,557.92 and 638,213.28
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Solution
The fourth proportional to 1,147,474.08, 1,583,557.92 and 638,213.28 is: 880,758.63
Step by Step Solution
- Step 1: Write the proportion equation
1,147,474.08 : 1,583,557.92 = 638,213.28 : x - Step 2: Convert to fraction form
1,147,474.08/1,583,557.92 = 638,213.28/x - Step 3: Cross multiply
1,147,474.08x = 1,583,557.92 × 638,213.28 - Step 4: Simplify right side
1,147,474.08x = 1,010,647,694,193.18 - Step 5: Solve for x
x = 1,010,647,694,193.18/1,147,474.08 - Step 6: Final answer
x = 880,758.63
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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.