Finding the Fourth Proportional to 815,494.38, 1,125,214.38 and 471,207.12
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Solution
The fourth proportional to 815,494.38, 1,125,214.38 and 471,207.12 is: 650,168.83
Step by Step Solution
- Step 1: Write the proportion equation
815,494.38 : 1,125,214.38 = 471,207.12 : x - Step 2: Convert to fraction form
815,494.38/1,125,214.38 = 471,207.12/x - Step 3: Cross multiply
815,494.38x = 1,125,214.38 × 471,207.12 - Step 4: Simplify right side
815,494.38x = 530,209,027,382.39 - Step 5: Solve for x
x = 530,209,027,382.39/815,494.38 - Step 6: Final answer
x = 650,168.83
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1.5x scale
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.