Finding the Fourth Proportional to 1,423,207.26, 1,964,113.11 and 819,789.66
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Solution
The fourth proportional to 1,423,207.26, 1,964,113.11 and 819,789.66 is: 1,131,359.90
Step by Step Solution
- Step 1: Write the proportion equation
1,423,207.26 : 1,964,113.11 = 819,789.66 : x - Step 2: Convert to fraction form
1,423,207.26/1,964,113.11 = 819,789.66/x - Step 3: Cross multiply
1,423,207.26x = 1,964,113.11 × 819,789.66 - Step 4: Simplify right side
1,423,207.26x = 1,610,159,618,648.44 - Step 5: Solve for x
x = 1,610,159,618,648.44/1,423,207.26 - Step 6: Final answer
x = 1,131,359.90
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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.