Finding the Fourth Proportional to 420,703.99, 580,569.19 and 229,716.03
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Solution
The fourth proportional to 420,703.99, 580,569.19 and 229,716.03 is: 317,006.86
Step by Step Solution
- Step 1: Write the proportion equation
420,703.99 : 580,569.19 = 229,716.03 : x - Step 2: Convert to fraction form
420,703.99/580,569.19 = 229,716.03/x - Step 3: Cross multiply
420,703.99x = 580,569.19 × 229,716.03 - Step 4: Simplify right side
420,703.99x = 133,366,049,467.12 - Step 5: Solve for x
x = 133,366,049,467.12/420,703.99 - Step 6: Final answer
x = 317,006.86
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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.