Finding the Fourth Proportional to 1,605,383.70, 2,215,529.02 and 889,991.70
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Solution
The fourth proportional to 1,605,383.70, 2,215,529.02 and 889,991.70 is: 1,228,243.71
Step by Step Solution
- Step 1: Write the proportion equation
1,605,383.70 : 2,215,529.02 = 889,991.70 : x - Step 2: Convert to fraction form
1,605,383.70/2,215,529.02 = 889,991.70/x - Step 3: Cross multiply
1,605,383.70x = 2,215,529.02 × 889,991.70 - Step 4: Simplify right side
1,605,383.70x = 1,971,802,438,909.13 - Step 5: Solve for x
x = 1,971,802,438,909.13/1,605,383.70 - Step 6: Final answer
x = 1,228,243.71
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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.