Finding the Fourth Proportional to 1,565,618.31, 2,160,576.37 and 912,230.19
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Solution
The fourth proportional to 1,565,618.31, 2,160,576.37 and 912,230.19 is: 1,258,891.12
Step by Step Solution
- Step 1: Write the proportion equation
1,565,618.31 : 2,160,576.37 = 912,230.19 : x - Step 2: Convert to fraction form
1,565,618.31/2,160,576.37 = 912,230.19/x - Step 3: Cross multiply
1,565,618.31x = 2,160,576.37 × 912,230.19 - Step 4: Simplify right side
1,565,618.31x = 1,970,942,981,711.73 - Step 5: Solve for x
x = 1,970,942,981,711.73/1,565,618.31 - Step 6: Final answer
x = 1,258,891.12
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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.