Finding the Fourth Proportional to 870,843.86, 1,306,314.42 and 271,887.74
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Solution
The fourth proportional to 870,843.86, 1,306,314.42 and 271,887.74 is: 407,846.79
Step by Step Solution
- Step 1: Write the proportion equation
870,843.86 : 1,306,314.42 = 271,887.74 : x - Step 2: Convert to fraction form
870,843.86/1,306,314.42 = 271,887.74/x - Step 3: Cross multiply
870,843.86x = 1,306,314.42 × 271,887.74 - Step 4: Simplify right side
870,843.86x = 355,170,875,383.21 - Step 5: Solve for x
x = 355,170,875,383.21/870,843.86 - Step 6: Final answer
x = 407,846.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.