Finding the Fourth Proportional to 1,521,514.13, 2,099,689.49 and 842,450.63
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Solution
The fourth proportional to 1,521,514.13, 2,099,689.49 and 842,450.63 is: 1,162,581.86
Step by Step Solution
- Step 1: Write the proportion equation
1,521,514.13 : 2,099,689.49 = 842,450.63 : x - Step 2: Convert to fraction form
1,521,514.13/2,099,689.49 = 842,450.63/x - Step 3: Cross multiply
1,521,514.13x = 2,099,689.49 × 842,450.63 - Step 4: Simplify right side
1,521,514.13x = 1,768,884,725,262.56 - Step 5: Solve for x
x = 1,768,884,725,262.56/1,521,514.13 - Step 6: Final answer
x = 1,162,581.86
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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.