Finding the Fourth Proportional to 819,805.80, 1,229,708.70 and 648,563.70
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Solution
The fourth proportional to 819,805.80, 1,229,708.70 and 648,563.70 is: 972,845.55
Step by Step Solution
- Step 1: Write the proportion equation
819,805.80 : 1,229,708.70 = 648,563.70 : x - Step 2: Convert to fraction form
819,805.80/1,229,708.70 = 648,563.70/x - Step 3: Cross multiply
819,805.80x = 1,229,708.70 × 648,563.70 - Step 4: Simplify right side
819,805.80x = 797,544,424,394.19 - Step 5: Solve for x
x = 797,544,424,394.19/819,805.80 - Step 6: Final answer
x = 972,845.55
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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.