Finding the Fourth Proportional to 1,455,721.17, 2,008,868.09 and 811,127.49
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Solution
The fourth proportional to 1,455,721.17, 2,008,868.09 and 811,127.49 is: 1,119,340.82
Step by Step Solution
- Step 1: Write the proportion equation
1,455,721.17 : 2,008,868.09 = 811,127.49 : x - Step 2: Convert to fraction form
1,455,721.17/2,008,868.09 = 811,127.49/x - Step 3: Cross multiply
1,455,721.17x = 2,008,868.09 × 811,127.49 - Step 4: Simplify right side
1,455,721.17x = 1,629,448,127,527.16 - Step 5: Solve for x
x = 1,629,448,127,527.16/1,455,721.17 - Step 6: Final answer
x = 1,119,340.82
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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.