Finding the Fourth Proportional to 870,412.92, 1,201,193.60 and 488,463.09
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Solution
The fourth proportional to 870,412.92, 1,201,193.60 and 488,463.09 is: 674,092.40
Step by Step Solution
- Step 1: Write the proportion equation
870,412.92 : 1,201,193.60 = 488,463.09 : x - Step 2: Convert to fraction form
870,412.92/1,201,193.60 = 488,463.09/x - Step 3: Cross multiply
870,412.92x = 1,201,193.60 × 488,463.09 - Step 4: Simplify right side
870,412.92x = 586,738,735,101.91 - Step 5: Solve for x
x = 586,738,735,101.91/870,412.92 - Step 6: Final answer
x = 674,092.40
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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.