Finding the Fourth Proportional to 870,591.30, 1,201,415.98 and 488,618.09
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Solution
The fourth proportional to 870,591.30, 1,201,415.98 and 488,618.09 is: 674,292.96
Step by Step Solution
- Step 1: Write the proportion equation
870,591.30 : 1,201,415.98 = 488,618.09 : x - Step 2: Convert to fraction form
870,591.30/1,201,415.98 = 488,618.09/x - Step 3: Cross multiply
870,591.30x = 1,201,415.98 × 488,618.09 - Step 4: Simplify right side
870,591.30x = 587,033,581,443.08 - Step 5: Solve for x
x = 587,033,581,443.08/870,591.30 - Step 6: Final answer
x = 674,292.96
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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.