Finding the Fourth Proportional to 2,076,257.40, 3,115,163.70 and 814,990.20
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Solution
The fourth proportional to 2,076,257.40, 3,115,163.70 and 814,990.20 is: 1,222,790.53
Step by Step Solution
- Step 1: Write the proportion equation
2,076,257.40 : 3,115,163.70 = 814,990.20 : x - Step 2: Convert to fraction form
2,076,257.40/3,115,163.70 = 814,990.20/x - Step 3: Cross multiply
2,076,257.40x = 3,115,163.70 × 814,990.20 - Step 4: Simplify right side
2,076,257.40x = 2,538,827,886,895.74 - Step 5: Solve for x
x = 2,538,827,886,895.74/2,076,257.40 - Step 6: Final answer
x = 1,222,790.53
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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.