Finding the Fourth Proportional to 1,279,812.38, 1,920,034.32 and 381,250.62
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Solution
The fourth proportional to 1,279,812.38, 1,920,034.32 and 381,250.62 is: 571,969.99
Step by Step Solution
- Step 1: Write the proportion equation
1,279,812.38 : 1,920,034.32 = 381,250.62 : x - Step 2: Convert to fraction form
1,279,812.38/1,920,034.32 = 381,250.62/x - Step 3: Cross multiply
1,279,812.38x = 1,920,034.32 × 381,250.62 - Step 4: Simplify right side
1,279,812.38x = 732,014,274,921.28 - Step 5: Solve for x
x = 732,014,274,921.28/1,279,812.38 - Step 6: Final answer
x = 571,969.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.