Finding the Fourth Proportional to 1,129,527.64, 1,557,431.04 and 842,549.50
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Solution
The fourth proportional to 1,129,527.64, 1,557,431.04 and 842,549.50 is: 1,161,735.84
Step by Step Solution
- Step 1: Write the proportion equation
1,129,527.64 : 1,557,431.04 = 842,549.50 : x - Step 2: Convert to fraction form
1,129,527.64/1,557,431.04 = 842,549.50/x - Step 3: Cross multiply
1,129,527.64x = 1,557,431.04 × 842,549.50 - Step 4: Simplify right side
1,129,527.64x = 1,312,212,740,382.28 - Step 5: Solve for x
x = 1,312,212,740,382.28/1,129,527.64 - Step 6: Final answer
x = 1,161,735.84
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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.