Finding the Fourth Proportional to 1,279,197.38, 1,919,798.76 and 892,431.02
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Solution
The fourth proportional to 1,279,197.38, 1,919,798.76 and 892,431.02 is: 1,339,346.06
Step by Step Solution
- Step 1: Write the proportion equation
1,279,197.38 : 1,919,798.76 = 892,431.02 : x - Step 2: Convert to fraction form
1,279,197.38/1,919,798.76 = 892,431.02/x - Step 3: Cross multiply
1,279,197.38x = 1,919,798.76 × 892,431.02 - Step 4: Simplify right side
1,279,197.38x = 1,713,287,965,581.54 - Step 5: Solve for x
x = 1,713,287,965,581.54/1,279,197.38 - Step 6: Final answer
x = 1,339,346.06
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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.