Finding the Fourth Proportional to 1,511,779.68, 2,086,238.07 and 823,449.38
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Solution
The fourth proportional to 1,511,779.68, 2,086,238.07 and 823,449.38 is: 1,136,350.39
Step by Step Solution
- Step 1: Write the proportion equation
1,511,779.68 : 2,086,238.07 = 823,449.38 : x - Step 2: Convert to fraction form
1,511,779.68/2,086,238.07 = 823,449.38/x - Step 3: Cross multiply
1,511,779.68x = 2,086,238.07 × 823,449.38 - Step 4: Simplify right side
1,511,779.68x = 1,717,911,434,842.71 - Step 5: Solve for x
x = 1,717,911,434,842.71/1,511,779.68 - Step 6: Final answer
x = 1,136,350.39
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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.