Finding the Fourth Proportional to 1,243,121.36, 1,715,021.64 and 699,132.38
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Solution
The fourth proportional to 1,243,121.36, 1,715,021.64 and 699,132.38 is: 964,529.45
Step by Step Solution
- Step 1: Write the proportion equation
1,243,121.36 : 1,715,021.64 = 699,132.38 : x - Step 2: Convert to fraction form
1,243,121.36/1,715,021.64 = 699,132.38/x - Step 3: Cross multiply
1,243,121.36x = 1,715,021.64 × 699,132.38 - Step 4: Simplify right side
1,243,121.36x = 1,199,027,160,924.70 - Step 5: Solve for x
x = 1,199,027,160,924.70/1,243,121.36 - Step 6: Final answer
x = 964,529.45
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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.