Finding the Fourth Proportional to 686,204.70, 1,029,347.37 and 265,482.78
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Solution
The fourth proportional to 686,204.70, 1,029,347.37 and 265,482.78 is: 398,239.77
Step by Step Solution
- Step 1: Write the proportion equation
686,204.70 : 1,029,347.37 = 265,482.78 : x - Step 2: Convert to fraction form
686,204.70/1,029,347.37 = 265,482.78/x - Step 3: Cross multiply
686,204.70x = 1,029,347.37 × 265,482.78 - Step 4: Simplify right side
686,204.70x = 273,274,001,373.29 - Step 5: Solve for x
x = 273,274,001,373.29/686,204.70 - Step 6: Final answer
x = 398,239.77
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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.