Finding the Fourth Proportional to 2,076,913.20, 3,115,661.40 and 656,821.20
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Solution
The fourth proportional to 2,076,913.20, 3,115,661.40 and 656,821.20 is: 985,324.02
Step by Step Solution
- Step 1: Write the proportion equation
2,076,913.20 : 3,115,661.40 = 656,821.20 : x - Step 2: Convert to fraction form
2,076,913.20/3,115,661.40 = 656,821.20/x - Step 3: Cross multiply
2,076,913.20x = 3,115,661.40 × 656,821.20 - Step 4: Simplify right side
2,076,913.20x = 2,046,432,459,541.68 - Step 5: Solve for x
x = 2,046,432,459,541.68/2,076,913.20 - Step 6: Final answer
x = 985,324.02
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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.