Finding the Fourth Proportional to 3,669,620.80, 5,488,879.20 and 3,293,262.40
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Solution
The fourth proportional to 3,669,620.80, 5,488,879.20 and 3,293,262.40 is: 4,925,936.62
Step by Step Solution
- Step 1: Write the proportion equation
3,669,620.80 : 5,488,879.20 = 3,293,262.40 : x - Step 2: Convert to fraction form
3,669,620.80/5,488,879.20 = 3,293,262.40/x - Step 3: Cross multiply
3,669,620.80x = 5,488,879.20 × 3,293,262.40 - Step 4: Simplify right side
3,669,620.80x = 18,076,319,487,502.08 - Step 5: Solve for x
x = 18,076,319,487,502.08/3,669,620.80 - Step 6: Final answer
x = 4,925,936.62
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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.