Finding the Fourth Proportional to 1,585,779.05, 2,378,668.58 and 387,687.15
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Solution
The fourth proportional to 1,585,779.05, 2,378,668.58 and 387,687.15 is: 581,530.73
Step by Step Solution
- Step 1: Write the proportion equation
1,585,779.05 : 2,378,668.58 = 387,687.15 : x - Step 2: Convert to fraction form
1,585,779.05/2,378,668.58 = 387,687.15/x - Step 3: Cross multiply
1,585,779.05x = 2,378,668.58 × 387,687.15 - Step 4: Simplify right side
1,585,779.05x = 922,179,240,636.31 - Step 5: Solve for x
x = 922,179,240,636.31/1,585,779.05 - Step 6: Final answer
x = 581,530.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.