Finding the Fourth Proportional to 1,517,411.70, 2,276,117.55 and 1,330,787.70
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Solution
The fourth proportional to 1,517,411.70, 2,276,117.55 and 1,330,787.70 is: 1,996,181.55
Step by Step Solution
- Step 1: Write the proportion equation
1,517,411.70 : 2,276,117.55 = 1,330,787.70 : x - Step 2: Convert to fraction form
1,517,411.70/2,276,117.55 = 1,330,787.70/x - Step 3: Cross multiply
1,517,411.70x = 2,276,117.55 × 1,330,787.70 - Step 4: Simplify right side
1,517,411.70x = 3,029,029,239,294.14 - Step 5: Solve for x
x = 3,029,029,239,294.14/1,517,411.70 - Step 6: Final answer
x = 1,996,181.55
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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.