Finding the Fourth Proportional to 2,143,605.36, 3,216,039.68 and 863,554.12
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Solution
The fourth proportional to 2,143,605.36, 3,216,039.68 and 863,554.12 is: 1,295,585.64
Step by Step Solution
- Step 1: Write the proportion equation
2,143,605.36 : 3,216,039.68 = 863,554.12 : x - Step 2: Convert to fraction form
2,143,605.36/3,216,039.68 = 863,554.12/x - Step 3: Cross multiply
2,143,605.36x = 3,216,039.68 × 863,554.12 - Step 4: Simplify right side
2,143,605.36x = 2,777,224,315,747.48 - Step 5: Solve for x
x = 2,777,224,315,747.48/2,143,605.36 - Step 6: Final answer
x = 1,295,585.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.