Finding the Fourth Proportional to 1,555,879.36, 2,147,105.49 and 902,637.48
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Solution
The fourth proportional to 1,555,879.36, 2,147,105.49 and 902,637.48 is: 1,245,635.06
Step by Step Solution
- Step 1: Write the proportion equation
1,555,879.36 : 2,147,105.49 = 902,637.48 : x - Step 2: Convert to fraction form
1,555,879.36/2,147,105.49 = 902,637.48/x - Step 3: Cross multiply
1,555,879.36x = 2,147,105.49 × 902,637.48 - Step 4: Simplify right side
1,555,879.36x = 1,938,057,877,351.23 - Step 5: Solve for x
x = 1,938,057,877,351.23/1,555,879.36 - Step 6: Final answer
x = 1,245,635.06
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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.