Finding the Fourth Proportional to 990,866.75, 1,367,350.36 and 561,149.96
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Solution
The fourth proportional to 990,866.75, 1,367,350.36 and 561,149.96 is: 774,361.02
Step by Step Solution
- Step 1: Write the proportion equation
990,866.75 : 1,367,350.36 = 561,149.96 : x - Step 2: Convert to fraction form
990,866.75/1,367,350.36 = 561,149.96/x - Step 3: Cross multiply
990,866.75x = 1,367,350.36 × 561,149.96 - Step 4: Simplify right side
990,866.75x = 767,288,590,177.48 - Step 5: Solve for x
x = 767,288,590,177.48/990,866.75 - Step 6: Final answer
x = 774,361.02
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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.