Finding the Fourth Proportional to 1,543,349.40, 2,129,821.62 and 855,065.88
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Solution
The fourth proportional to 1,543,349.40, 2,129,821.62 and 855,065.88 is: 1,179,990.61
Step by Step Solution
- Step 1: Write the proportion equation
1,543,349.40 : 2,129,821.62 = 855,065.88 : x - Step 2: Convert to fraction form
1,543,349.40/2,129,821.62 = 855,065.88/x - Step 3: Cross multiply
1,543,349.40x = 2,129,821.62 × 855,065.88 - Step 4: Simplify right side
1,543,349.40x = 1,821,137,797,748.33 - Step 5: Solve for x
x = 1,821,137,797,748.33/1,543,349.40 - Step 6: Final answer
x = 1,179,990.61
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.