Finding the Fourth Proportional to 987,549.80, 1,362,902.64 and 557,908.80
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Solution
The fourth proportional to 987,549.80, 1,362,902.64 and 557,908.80 is: 769,961.55
Step by Step Solution
- Step 1: Write the proportion equation
987,549.80 : 1,362,902.64 = 557,908.80 : x - Step 2: Convert to fraction form
987,549.80/1,362,902.64 = 557,908.80/x - Step 3: Cross multiply
987,549.80x = 1,362,902.64 × 557,908.80 - Step 4: Simplify right side
987,549.80x = 760,375,376,399.23 - Step 5: Solve for x
x = 760,375,376,399.23/987,549.80 - Step 6: Final answer
x = 769,961.55
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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.