Finding the Fourth Proportional to 987,537.80, 1,362,886.08 and 557,896.80
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Solution
The fourth proportional to 987,537.80, 1,362,886.08 and 557,896.80 is: 769,944.99
Step by Step Solution
- Step 1: Write the proportion equation
987,537.80 : 1,362,886.08 = 557,896.80 : x - Step 2: Convert to fraction form
987,537.80/1,362,886.08 = 557,896.80/x - Step 3: Cross multiply
987,537.80x = 1,362,886.08 × 557,896.80 - Step 4: Simplify right side
987,537.80x = 760,349,782,796.54 - Step 5: Solve for x
x = 760,349,782,796.54/987,537.80 - Step 6: Final answer
x = 769,944.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.