Finding the Fourth Proportional to 2,885,239.40, 3,981,724.74 and 1,578,461.11
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Solution
The fourth proportional to 2,885,239.40, 3,981,724.74 and 1,578,461.11 is: 2,178,327.96
Step by Step Solution
- Step 1: Write the proportion equation
2,885,239.40 : 3,981,724.74 = 1,578,461.11 : x - Step 2: Convert to fraction form
2,885,239.40/3,981,724.74 = 1,578,461.11/x - Step 3: Cross multiply
2,885,239.40x = 3,981,724.74 × 1,578,461.11 - Step 4: Simplify right side
2,885,239.40x = 6,284,997,642,860.55 - Step 5: Solve for x
x = 6,284,997,642,860.55/2,885,239.40 - Step 6: Final answer
x = 2,178,327.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.