Finding the Fourth Proportional to 694,698.92, 1,042,028.93 and 221,412.68
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Solution
The fourth proportional to 694,698.92, 1,042,028.93 and 221,412.68 is: 332,112.82
Step by Step Solution
- Step 1: Write the proportion equation
694,698.92 : 1,042,028.93 = 221,412.68 : x - Step 2: Convert to fraction form
694,698.92/1,042,028.93 = 221,412.68/x - Step 3: Cross multiply
694,698.92x = 1,042,028.93 × 221,412.68 - Step 4: Simplify right side
694,698.92x = 230,718,413,372.22 - Step 5: Solve for x
x = 230,718,413,372.22/694,698.92 - Step 6: Final answer
x = 332,112.82
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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.