Finding the Fourth Proportional to 1,905,402.63, 2,629,387.60 and 1,078,458.44
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Solution
The fourth proportional to 1,905,402.63, 2,629,387.60 and 1,078,458.44 is: 1,488,234.14
Step by Step Solution
- Step 1: Write the proportion equation
1,905,402.63 : 2,629,387.60 = 1,078,458.44 : x - Step 2: Convert to fraction form
1,905,402.63/2,629,387.60 = 1,078,458.44/x - Step 3: Cross multiply
1,905,402.63x = 2,629,387.60 × 1,078,458.44 - Step 4: Simplify right side
1,905,402.63x = 2,835,685,253,128.67 - Step 5: Solve for x
x = 2,835,685,253,128.67/1,905,402.63 - Step 6: Final answer
x = 1,488,234.14
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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.