Finding the Fourth Proportional to 1,579,018.42, 2,178,996.28 and 890,679.99
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Solution
The fourth proportional to 1,579,018.42, 2,178,996.28 and 890,679.99 is: 1,229,110.67
Step by Step Solution
- Step 1: Write the proportion equation
1,579,018.42 : 2,178,996.28 = 890,679.99 : x - Step 2: Convert to fraction form
1,579,018.42/2,178,996.28 = 890,679.99/x - Step 3: Cross multiply
1,579,018.42x = 2,178,996.28 × 890,679.99 - Step 4: Simplify right side
1,579,018.42x = 1,940,788,384,880.44 - Step 5: Solve for x
x = 1,940,788,384,880.44/1,579,018.42 - Step 6: Final answer
x = 1,229,110.67
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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.