Finding the Fourth Proportional to 686,340.19, 1,029,661.04 and 281,534.79
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Solution
The fourth proportional to 686,340.19, 1,029,661.04 and 281,534.79 is: 422,364.03
Step by Step Solution
- Step 1: Write the proportion equation
686,340.19 : 1,029,661.04 = 281,534.79 : x - Step 2: Convert to fraction form
686,340.19/1,029,661.04 = 281,534.79/x - Step 3: Cross multiply
686,340.19x = 1,029,661.04 × 281,534.79 - Step 4: Simplify right side
686,340.19x = 289,885,405,371.42 - Step 5: Solve for x
x = 289,885,405,371.42/686,340.19 - Step 6: Final answer
x = 422,364.03
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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.