Finding the Fourth Proportional to 4,752,877.20, 7,129,315.80 and 1,557,232.80
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Solution
The fourth proportional to 4,752,877.20, 7,129,315.80 and 1,557,232.80 is: 2,335,849.20
Step by Step Solution
- Step 1: Write the proportion equation
4,752,877.20 : 7,129,315.80 = 1,557,232.80 : x - Step 2: Convert to fraction form
4,752,877.20/7,129,315.80 = 1,557,232.80/x - Step 3: Cross multiply
4,752,877.20x = 7,129,315.80 × 1,557,232.80 - Step 4: Simplify right side
4,752,877.20x = 11,102,004,405,318.24 - Step 5: Solve for x
x = 11,102,004,405,318.24/4,752,877.20 - Step 6: Final answer
x = 2,335,849.20
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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.