Finding the Fourth Proportional to 2,752,235.40, 4,129,009.20 and 1,331,122.80
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Solution
The fourth proportional to 2,752,235.40, 4,129,009.20 and 1,331,122.80 is: 1,997,001.52
Step by Step Solution
- Step 1: Write the proportion equation
2,752,235.40 : 4,129,009.20 = 1,331,122.80 : x - Step 2: Convert to fraction form
2,752,235.40/4,129,009.20 = 1,331,122.80/x - Step 3: Cross multiply
2,752,235.40x = 4,129,009.20 × 1,331,122.80 - Step 4: Simplify right side
2,752,235.40x = 5,496,218,287,529.76 - Step 5: Solve for x
x = 5,496,218,287,529.76/2,752,235.40 - Step 6: Final answer
x = 1,997,001.52
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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.