Finding the Fourth Proportional to 3,138,910.40, 4,701,671.76 and 1,517,228.84
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Solution
The fourth proportional to 3,138,910.40, 4,701,671.76 and 1,517,228.84 is: 2,272,607.71
Step by Step Solution
- Step 1: Write the proportion equation
3,138,910.40 : 4,701,671.76 = 1,517,228.84 : x - Step 2: Convert to fraction form
3,138,910.40/4,701,671.76 = 1,517,228.84/x - Step 3: Cross multiply
3,138,910.40x = 4,701,671.76 × 1,517,228.84 - Step 4: Simplify right side
3,138,910.40x = 7,133,511,990,485.56 - Step 5: Solve for x
x = 7,133,511,990,485.56/3,138,910.40 - Step 6: Final answer
x = 2,272,607.71
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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.