Finding the Fourth Proportional to 1,129,742.17, 1,694,531.21 and 371,574.88
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Solution
The fourth proportional to 1,129,742.17, 1,694,531.21 and 371,574.88 is: 557,335.33
Step by Step Solution
- Step 1: Write the proportion equation
1,129,742.17 : 1,694,531.21 = 371,574.88 : x - Step 2: Convert to fraction form
1,129,742.17/1,694,531.21 = 371,574.88/x - Step 3: Cross multiply
1,129,742.17x = 1,694,531.21 × 371,574.88 - Step 4: Simplify right side
1,129,742.17x = 629,645,224,917.80 - Step 5: Solve for x
x = 629,645,224,917.80/1,129,742.17 - Step 6: Final answer
x = 557,335.33
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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.