Finding the Fourth Proportional to 1,290,252.54, 1,780,609.26 and 717,302.28
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Solution
The fourth proportional to 1,290,252.54, 1,780,609.26 and 717,302.28 is: 989,910.92
Step by Step Solution
- Step 1: Write the proportion equation
1,290,252.54 : 1,780,609.26 = 717,302.28 : x - Step 2: Convert to fraction form
1,290,252.54/1,780,609.26 = 717,302.28/x - Step 3: Cross multiply
1,290,252.54x = 1,780,609.26 × 717,302.28 - Step 4: Simplify right side
1,290,252.54x = 1,277,235,081,987.11 - Step 5: Solve for x
x = 1,277,235,081,987.11/1,290,252.54 - Step 6: Final answer
x = 989,910.92
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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.