Finding the Fourth Proportional to 1,163,819.30, 1,605,829.92 and 680,290.91
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Solution
The fourth proportional to 1,163,819.30, 1,605,829.92 and 680,290.91 is: 938,660.75
Step by Step Solution
- Step 1: Write the proportion equation
1,163,819.30 : 1,605,829.92 = 680,290.91 : x - Step 2: Convert to fraction form
1,163,819.30/1,605,829.92 = 680,290.91/x - Step 3: Cross multiply
1,163,819.30x = 1,605,829.92 × 680,290.91 - Step 4: Simplify right side
1,163,819.30x = 1,092,431,497,582.03 - Step 5: Solve for x
x = 1,092,431,497,582.03/1,163,819.30 - Step 6: Final answer
x = 938,660.75
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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.