Finding the Fourth Proportional to 991,120.93, 1,486,737.69 and 281,092.75
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Solution
The fourth proportional to 991,120.93, 1,486,737.69 and 281,092.75 is: 421,655.09
Step by Step Solution
- Step 1: Write the proportion equation
991,120.93 : 1,486,737.69 = 281,092.75 : x - Step 2: Convert to fraction form
991,120.93/1,486,737.69 = 281,092.75/x - Step 3: Cross multiply
991,120.93x = 1,486,737.69 × 281,092.75 - Step 4: Simplify right side
991,120.93x = 417,911,185,810.75 - Step 5: Solve for x
x = 417,911,185,810.75/991,120.93 - Step 6: Final answer
x = 421,655.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.