Finding the Fourth Proportional to 853,249.35, 1,279,378.86 and 403,966.42
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Solution
The fourth proportional to 853,249.35, 1,279,378.86 and 403,966.42 is: 605,715.20
Step by Step Solution
- Step 1: Write the proportion equation
853,249.35 : 1,279,378.86 = 403,966.42 : x - Step 2: Convert to fraction form
853,249.35/1,279,378.86 = 403,966.42/x - Step 3: Cross multiply
853,249.35x = 1,279,378.86 × 403,966.42 - Step 4: Simplify right side
853,249.35x = 516,826,097,897.88 - Step 5: Solve for x
x = 516,826,097,897.88/853,249.35 - Step 6: Final answer
x = 605,715.20
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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.