Finding the Fourth Proportional to 2,132,729.54, 2,943,186.37 and 1,214,945.09
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Solution
The fourth proportional to 2,132,729.54, 2,943,186.37 and 1,214,945.09 is: 1,676,635.39
Step by Step Solution
- Step 1: Write the proportion equation
2,132,729.54 : 2,943,186.37 = 1,214,945.09 : x - Step 2: Convert to fraction form
2,132,729.54/2,943,186.37 = 1,214,945.09/x - Step 3: Cross multiply
2,132,729.54x = 2,943,186.37 × 1,214,945.09 - Step 4: Simplify right side
2,132,729.54x = 3,575,809,822,470.08 - Step 5: Solve for x
x = 3,575,809,822,470.08/2,132,729.54 - Step 6: Final answer
x = 1,676,635.39
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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.