Finding the Fourth Proportional to 756,498.36, 1,135,006.74 and 258,212.28
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Solution
The fourth proportional to 756,498.36, 1,135,006.74 and 258,212.28 is: 387,406.89
Step by Step Solution
- Step 1: Write the proportion equation
756,498.36 : 1,135,006.74 = 258,212.28 : x - Step 2: Convert to fraction form
756,498.36/1,135,006.74 = 258,212.28/x - Step 3: Cross multiply
756,498.36x = 1,135,006.74 × 258,212.28 - Step 4: Simplify right side
756,498.36x = 293,072,678,150.77 - Step 5: Solve for x
x = 293,072,678,150.77/756,498.36 - Step 6: Final answer
x = 387,406.89
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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.