Finding the Fourth Proportional to 987,162, 1,480,743.21 and 356,075.75
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Solution
The fourth proportional to 987,162, 1,480,743.21 and 356,075.75 is: 534,113.69
Step by Step Solution
- Step 1: Write the proportion equation
987,162 : 1,480,743.21 = 356,075.75 : x - Step 2: Convert to fraction form
987,162/1,480,743.21 = 356,075.75/x - Step 3: Cross multiply
987,162x = 1,480,743.21 × 356,075.75 - Step 4: Simplify right side
987,162x = 527,256,741,654.44 - Step 5: Solve for x
x = 527,256,741,654.44/987,162 - Step 6: Final answer
x = 534,113.69
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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.