Finding the Fourth Proportional to 987,653.99, 1,363,073.04 and 557,961.77
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Solution
The fourth proportional to 987,653.99, 1,363,073.04 and 557,961.77 is: 770,049.68
Step by Step Solution
- Step 1: Write the proportion equation
987,653.99 : 1,363,073.04 = 557,961.77 : x - Step 2: Convert to fraction form
987,653.99/1,363,073.04 = 557,961.77/x - Step 3: Cross multiply
987,653.99x = 1,363,073.04 × 557,961.77 - Step 4: Simplify right side
987,653.99x = 760,542,639,222.32 - Step 5: Solve for x
x = 760,542,639,222.32/987,653.99 - Step 6: Final answer
x = 770,049.68
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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.