Finding the Fourth Proportional to 1,425,546.18, 2,138,638.41 and 478,891.08
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Solution
The fourth proportional to 1,425,546.18, 2,138,638.41 and 478,891.08 is: 718,443.83
Step by Step Solution
- Step 1: Write the proportion equation
1,425,546.18 : 2,138,638.41 = 478,891.08 : x - Step 2: Convert to fraction form
1,425,546.18/2,138,638.41 = 478,891.08/x - Step 3: Cross multiply
1,425,546.18x = 2,138,638.41 × 478,891.08 - Step 4: Simplify right side
1,425,546.18x = 1,024,174,857,894.38 - Step 5: Solve for x
x = 1,024,174,857,894.38/1,425,546.18 - Step 6: Final answer
x = 718,443.83
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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.