Finding the Fourth Proportional to 3,745,905.20, 5,619,635.40 and 1,221,750.80
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Solution
The fourth proportional to 3,745,905.20, 5,619,635.40 and 1,221,750.80 is: 1,832,879.82
Step by Step Solution
- Step 1: Write the proportion equation
3,745,905.20 : 5,619,635.40 = 1,221,750.80 : x - Step 2: Convert to fraction form
3,745,905.20/5,619,635.40 = 1,221,750.80/x - Step 3: Cross multiply
3,745,905.20x = 5,619,635.40 × 1,221,750.80 - Step 4: Simplify right side
3,745,905.20x = 6,865,794,045,658.32 - Step 5: Solve for x
x = 6,865,794,045,658.32/3,745,905.20 - Step 6: Final answer
x = 1,832,879.82
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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.