Finding the Fourth Proportional to 1,127,368.63, 1,691,033.45 and 379,414.63
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Solution
The fourth proportional to 1,127,368.63, 1,691,033.45 and 379,414.63 is: 569,115.38
Step by Step Solution
- Step 1: Write the proportion equation
1,127,368.63 : 1,691,033.45 = 379,414.63 : x - Step 2: Convert to fraction form
1,127,368.63/1,691,033.45 = 379,414.63/x - Step 3: Cross multiply
1,127,368.63x = 1,691,033.45 × 379,414.63 - Step 4: Simplify right side
1,127,368.63x = 641,602,830,749.37 - Step 5: Solve for x
x = 641,602,830,749.37/1,127,368.63 - Step 6: Final answer
x = 569,115.38
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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.