Finding the Fourth Proportional to 4,678,767.88, 7,018,821.29 and 1,440,579.53
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Solution
The fourth proportional to 4,678,767.88, 7,018,821.29 and 1,440,579.53 is: 2,161,075.42
Step by Step Solution
- Step 1: Write the proportion equation
4,678,767.88 : 7,018,821.29 = 1,440,579.53 : x - Step 2: Convert to fraction form
4,678,767.88/7,018,821.29 = 1,440,579.53/x - Step 3: Cross multiply
4,678,767.88x = 7,018,821.29 × 1,440,579.53 - Step 4: Simplify right side
4,678,767.88x = 10,111,170,275,102.19 - Step 5: Solve for x
x = 10,111,170,275,102.19/4,678,767.88 - Step 6: Final answer
x = 2,161,075.42
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.