Finding the Fourth Proportional to 1,129,706.19, 1,694,199.33 and 371,372.13
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Solution
The fourth proportional to 1,129,706.19, 1,694,199.33 and 371,372.13 is: 556,939.87
Step by Step Solution
- Step 1: Write the proportion equation
1,129,706.19 : 1,694,199.33 = 371,372.13 : x - Step 2: Convert to fraction form
1,129,706.19/1,694,199.33 = 371,372.13/x - Step 3: Cross multiply
1,129,706.19x = 1,694,199.33 × 371,372.13 - Step 4: Simplify right side
1,129,706.19x = 629,178,413,826.67 - Step 5: Solve for x
x = 629,178,413,826.67/1,129,706.19 - Step 6: Final answer
x = 556,939.87
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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.