Finding the Fourth Proportional to 872,842.08, 1,204,569.72 and 490,891.44
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Solution
The fourth proportional to 872,842.08, 1,204,569.72 and 490,891.44 is: 677,456.99
Step by Step Solution
- Step 1: Write the proportion equation
872,842.08 : 1,204,569.72 = 490,891.44 : x - Step 2: Convert to fraction form
872,842.08/1,204,569.72 = 490,891.44/x - Step 3: Cross multiply
872,842.08x = 1,204,569.72 × 490,891.44 - Step 4: Simplify right side
872,842.08x = 591,312,964,431.20 - Step 5: Solve for x
x = 591,312,964,431.20/872,842.08 - Step 6: Final answer
x = 677,456.99
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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.