Finding the Fourth Proportional to 819,365.70, 1,229,048.58 and 258,443.94
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Solution
The fourth proportional to 819,365.70, 1,229,048.58 and 258,443.94 is: 387,665.92
Step by Step Solution
- Step 1: Write the proportion equation
819,365.70 : 1,229,048.58 = 258,443.94 : x - Step 2: Convert to fraction form
819,365.70/1,229,048.58 = 258,443.94/x - Step 3: Cross multiply
819,365.70x = 1,229,048.58 × 258,443.94 - Step 4: Simplify right side
819,365.70x = 317,640,157,466.61 - Step 5: Solve for x
x = 317,640,157,466.61/819,365.70 - Step 6: Final answer
x = 387,665.92
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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.