Finding the Fourth Proportional to 880,878.47, 1,321,405.18 and 281,689.07
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Solution
The fourth proportional to 880,878.47, 1,321,405.18 and 281,689.07 is: 422,561.57
Step by Step Solution
- Step 1: Write the proportion equation
880,878.47 : 1,321,405.18 = 281,689.07 : x - Step 2: Convert to fraction form
880,878.47/1,321,405.18 = 281,689.07/x - Step 3: Cross multiply
880,878.47x = 1,321,405.18 × 281,689.07 - Step 4: Simplify right side
880,878.47x = 372,225,388,936.13 - Step 5: Solve for x
x = 372,225,388,936.13/880,878.47 - Step 6: Final answer
x = 422,561.57
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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.