Finding the Fourth Proportional to 1,511,555.31, 2,085,584.05 and 858,035.97
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Solution
The fourth proportional to 1,511,555.31, 2,085,584.05 and 858,035.97 is: 1,183,883.99
Step by Step Solution
- Step 1: Write the proportion equation
1,511,555.31 : 2,085,584.05 = 858,035.97 : x - Step 2: Convert to fraction form
1,511,555.31/2,085,584.05 = 858,035.97/x - Step 3: Cross multiply
1,511,555.31x = 2,085,584.05 × 858,035.97 - Step 4: Simplify right side
1,511,555.31x = 1,789,506,134,430.82 - Step 5: Solve for x
x = 1,789,506,134,430.82/1,511,555.31 - Step 6: Final answer
x = 1,183,883.99
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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.