Finding the Fourth Proportional to 1,279,476.06, 1,919,608.29 and 920,458.14
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Solution
The fourth proportional to 1,279,476.06, 1,919,608.29 and 920,458.14 is: 1,380,970.80
Step by Step Solution
- Step 1: Write the proportion equation
1,279,476.06 : 1,919,608.29 = 920,458.14 : x - Step 2: Convert to fraction form
1,279,476.06/1,919,608.29 = 920,458.14/x - Step 3: Cross multiply
1,279,476.06x = 1,919,608.29 × 920,458.14 - Step 4: Simplify right side
1,279,476.06x = 1,766,919,076,141.98 - Step 5: Solve for x
x = 1,766,919,076,141.98/1,279,476.06 - Step 6: Final answer
x = 1,380,970.80
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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.