Finding the Fourth Proportional to 802,991.36, 1,108,128.84 and 440,430.68
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Solution
The fourth proportional to 802,991.36, 1,108,128.84 and 440,430.68 is: 607,794.76
Step by Step Solution
- Step 1: Write the proportion equation
802,991.36 : 1,108,128.84 = 440,430.68 : x - Step 2: Convert to fraction form
802,991.36/1,108,128.84 = 440,430.68/x - Step 3: Cross multiply
802,991.36x = 1,108,128.84 × 440,430.68 - Step 4: Simplify right side
802,991.36x = 488,053,938,528.81 - Step 5: Solve for x
x = 488,053,938,528.81/802,991.36 - Step 6: Final answer
x = 607,794.76
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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.