Finding the Fourth Proportional to 2,227,787.84, 3,074,350.32 and 1,209,192.80
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Solution
The fourth proportional to 2,227,787.84, 3,074,350.32 and 1,209,192.80 is: 1,668,687.75
Step by Step Solution
- Step 1: Write the proportion equation
2,227,787.84 : 3,074,350.32 = 1,209,192.80 : x - Step 2: Convert to fraction form
2,227,787.84/3,074,350.32 = 1,209,192.80/x - Step 3: Cross multiply
2,227,787.84x = 3,074,350.32 × 1,209,192.80 - Step 4: Simplify right side
2,227,787.84x = 3,717,482,271,621.70 - Step 5: Solve for x
x = 3,717,482,271,621.70/2,227,787.84 - Step 6: Final answer
x = 1,668,687.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.