Finding the Fourth Proportional to 2,470,639.20, 3,705,958.80 and 2,080,915.80
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Solution
The fourth proportional to 2,470,639.20, 3,705,958.80 and 2,080,915.80 is: 3,121,373.70
Step by Step Solution
- Step 1: Write the proportion equation
2,470,639.20 : 3,705,958.80 = 2,080,915.80 : x - Step 2: Convert to fraction form
2,470,639.20/3,705,958.80 = 2,080,915.80/x - Step 3: Cross multiply
2,470,639.20x = 3,705,958.80 × 2,080,915.80 - Step 4: Simplify right side
2,470,639.20x = 7,711,788,221,069.04 - Step 5: Solve for x
x = 7,711,788,221,069.04/2,470,639.20 - Step 6: Final answer
x = 3,121,373.70
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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.