Finding the Fourth Proportional to 1,369,121.76, 1,888,809.48 and 916,558.56
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Solution
The fourth proportional to 1,369,121.76, 1,888,809.48 and 916,558.56 is: 1,264,463.50
Step by Step Solution
- Step 1: Write the proportion equation
1,369,121.76 : 1,888,809.48 = 916,558.56 : x - Step 2: Convert to fraction form
1,369,121.76/1,888,809.48 = 916,558.56/x - Step 3: Cross multiply
1,369,121.76x = 1,888,809.48 × 916,558.56 - Step 4: Simplify right side
1,369,121.76x = 1,731,204,497,103.15 - Step 5: Solve for x
x = 1,731,204,497,103.15/1,369,121.76 - Step 6: Final answer
x = 1,264,463.50
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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.