Finding the Fourth Proportional to 1,609,274.32, 2,220,031.19 and 1,172,755.80
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Solution
The fourth proportional to 1,609,274.32, 2,220,031.19 and 1,172,755.80 is: 1,617,843.79
Step by Step Solution
- Step 1: Write the proportion equation
1,609,274.32 : 2,220,031.19 = 1,172,755.80 : x - Step 2: Convert to fraction form
1,609,274.32/2,220,031.19 = 1,172,755.80/x - Step 3: Cross multiply
1,609,274.32x = 2,220,031.19 × 1,172,755.80 - Step 4: Simplify right side
1,609,274.32x = 2,603,554,457,185.29 - Step 5: Solve for x
x = 2,603,554,457,185.29/1,609,274.32 - Step 6: Final answer
x = 1,617,843.79
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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.