Finding the Fourth Proportional to 1,225,983.18, 1,839,135.45 and 405,049.06
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Solution
The fourth proportional to 1,225,983.18, 1,839,135.45 and 405,049.06 is: 607,626.68
Step by Step Solution
- Step 1: Write the proportion equation
1,225,983.18 : 1,839,135.45 = 405,049.06 : x - Step 2: Convert to fraction form
1,225,983.18/1,839,135.45 = 405,049.06/x - Step 3: Cross multiply
1,225,983.18x = 1,839,135.45 × 405,049.06 - Step 4: Simplify right side
1,225,983.18x = 744,940,089,053.03 - Step 5: Solve for x
x = 744,940,089,053.03/1,225,983.18 - Step 6: Final answer
x = 607,626.68
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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.