Finding the Fourth Proportional to 2,187,588.70, 3,018,872.46 and 1,207,527.93
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Solution
The fourth proportional to 2,187,588.70, 3,018,872.46 and 1,207,527.93 is: 1,666,388.58
Step by Step Solution
- Step 1: Write the proportion equation
2,187,588.70 : 3,018,872.46 = 1,207,527.93 : x - Step 2: Convert to fraction form
2,187,588.70/3,018,872.46 = 1,207,527.93/x - Step 3: Cross multiply
2,187,588.70x = 3,018,872.46 × 1,207,527.93 - Step 4: Simplify right side
2,187,588.70x = 3,645,372,820,104.99 - Step 5: Solve for x
x = 3,645,372,820,104.99/2,187,588.70 - Step 6: Final answer
x = 1,666,388.58
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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.