Finding the Fourth Proportional to 3,218,964.84, 4,440,505.86 and 2,186,525.88
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Solution
The fourth proportional to 3,218,964.84, 4,440,505.86 and 2,186,525.88 is: 3,016,274.32
Step by Step Solution
- Step 1: Write the proportion equation
3,218,964.84 : 4,440,505.86 = 2,186,525.88 : x - Step 2: Convert to fraction form
3,218,964.84/4,440,505.86 = 2,186,525.88/x - Step 3: Cross multiply
3,218,964.84x = 4,440,505.86 × 2,186,525.88 - Step 4: Simplify right side
3,218,964.84x = 9,709,280,983,181.66 - Step 5: Solve for x
x = 9,709,280,983,181.66/3,218,964.84 - Step 6: Final answer
x = 3,016,274.32
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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.