Finding the Fourth Proportional to 1,293,272.79, 1,939,908.92 and 394,719.09
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Solution
The fourth proportional to 1,293,272.79, 1,939,908.92 and 394,719.09 is: 592,078.55
Step by Step Solution
- Step 1: Write the proportion equation
1,293,272.79 : 1,939,908.92 = 394,719.09 : x - Step 2: Convert to fraction form
1,293,272.79/1,939,908.92 = 394,719.09/x - Step 3: Cross multiply
1,293,272.79x = 1,939,908.92 × 394,719.09 - Step 4: Simplify right side
1,293,272.79x = 765,719,081,611.69 - Step 5: Solve for x
x = 765,719,081,611.69/1,293,272.79 - Step 6: Final answer
x = 592,078.55
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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.