Finding the Fourth Proportional to 1,143,932.09, 1,715,910.38 and 345,220.79
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Solution
The fourth proportional to 1,143,932.09, 1,715,910.38 and 345,220.79 is: 517,834.88
Step by Step Solution
- Step 1: Write the proportion equation
1,143,932.09 : 1,715,910.38 = 345,220.79 : x - Step 2: Convert to fraction form
1,143,932.09/1,715,910.38 = 345,220.79/x - Step 3: Cross multiply
1,143,932.09x = 1,715,910.38 × 345,220.79 - Step 4: Simplify right side
1,143,932.09x = 592,367,935,226.70 - Step 5: Solve for x
x = 592,367,935,226.70/1,143,932.09 - Step 6: Final answer
x = 517,834.88
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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.