Finding the Fourth Proportional to 1,688,163.99, 2,328,794.51 and 1,144,113.72
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Solution
The fourth proportional to 1,688,163.99, 2,328,794.51 and 1,144,113.72 is: 1,578,286.09
Step by Step Solution
- Step 1: Write the proportion equation
1,688,163.99 : 2,328,794.51 = 1,144,113.72 : x - Step 2: Convert to fraction form
1,688,163.99/2,328,794.51 = 1,144,113.72/x - Step 3: Cross multiply
1,688,163.99x = 2,328,794.51 × 1,144,113.72 - Step 4: Simplify right side
1,688,163.99x = 2,664,405,749,951.68 - Step 5: Solve for x
x = 2,664,405,749,951.68/1,688,163.99 - Step 6: Final answer
x = 1,578,286.09
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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.