Finding the Fourth Proportional to 1,206,302.70, 1,809,324.45 and 319,838.70
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Solution
The fourth proportional to 1,206,302.70, 1,809,324.45 and 319,838.70 is: 479,723.69
Step by Step Solution
- Step 1: Write the proportion equation
1,206,302.70 : 1,809,324.45 = 319,838.70 : x - Step 2: Convert to fraction form
1,206,302.70/1,809,324.45 = 319,838.70/x - Step 3: Cross multiply
1,206,302.70x = 1,809,324.45 × 319,838.70 - Step 4: Simplify right side
1,206,302.70x = 578,691,979,966.22 - Step 5: Solve for x
x = 578,691,979,966.22/1,206,302.70 - Step 6: Final answer
x = 479,723.69
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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.