Finding the Fourth Proportional to 2,154,755.97, 2,973,486.69 and 1,174,674.74
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Solution
The fourth proportional to 2,154,755.97, 2,973,486.69 and 1,174,674.74 is: 1,621,009.40
Step by Step Solution
- Step 1: Write the proportion equation
2,154,755.97 : 2,973,486.69 = 1,174,674.74 : x - Step 2: Convert to fraction form
2,154,755.97/2,973,486.69 = 1,174,674.74/x - Step 3: Cross multiply
2,154,755.97x = 2,973,486.69 × 1,174,674.74 - Step 4: Simplify right side
2,154,755.97x = 3,492,879,689,601.78 - Step 5: Solve for x
x = 3,492,879,689,601.78/2,154,755.97 - Step 6: Final answer
x = 1,621,009.40
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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.