Finding the Fourth Proportional to 4,187,405.20, 6,281,107.80 and 1,663,060.45
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Solution
The fourth proportional to 4,187,405.20, 6,281,107.80 and 1,663,060.45 is: 2,494,590.68
Step by Step Solution
- Step 1: Write the proportion equation
4,187,405.20 : 6,281,107.80 = 1,663,060.45 : x - Step 2: Convert to fraction form
4,187,405.20/6,281,107.80 = 1,663,060.45/x - Step 3: Cross multiply
4,187,405.20x = 6,281,107.80 × 1,663,060.45 - Step 4: Simplify right side
4,187,405.20x = 10,445,861,964,366.51 - Step 5: Solve for x
x = 10,445,861,964,366.51/4,187,405.20 - Step 6: Final answer
x = 2,494,590.68
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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.