Finding the Fourth Proportional to 1,442,566.28, 1,990,568.00 and 830,917.97
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Solution
The fourth proportional to 1,442,566.28, 1,990,568.00 and 830,917.97 is: 1,146,566.88
Step by Step Solution
- Step 1: Write the proportion equation
1,442,566.28 : 1,990,568.00 = 830,917.97 : x - Step 2: Convert to fraction form
1,442,566.28/1,990,568.00 = 830,917.97/x - Step 3: Cross multiply
1,442,566.28x = 1,990,568.00 × 830,917.97 - Step 4: Simplify right side
1,442,566.28x = 1,653,998,707,599.53 - Step 5: Solve for x
x = 1,653,998,707,599.53/1,442,566.28 - Step 6: Final answer
x = 1,146,566.88
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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.