Finding the Fourth Proportional to 1,721,100.98, 2,375,121.74 and 957,154.55
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Solution
The fourth proportional to 1,721,100.98, 2,375,121.74 and 957,154.55 is: 1,320,874.60
Step by Step Solution
- Step 1: Write the proportion equation
1,721,100.98 : 2,375,121.74 = 957,154.55 : x - Step 2: Convert to fraction form
1,721,100.98/2,375,121.74 = 957,154.55/x - Step 3: Cross multiply
1,721,100.98x = 2,375,121.74 × 957,154.55 - Step 4: Simplify right side
1,721,100.98x = 2,273,358,563,583.54 - Step 5: Solve for x
x = 2,273,358,563,583.54/1,721,100.98 - Step 6: Final answer
x = 1,320,874.60
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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.