Finding the Fourth Proportional to 1,543,721.14, 2,130,335.16 and 940,109.14
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Solution
The fourth proportional to 1,543,721.14, 2,130,335.16 and 940,109.14 is: 1,297,350.61
Step by Step Solution
- Step 1: Write the proportion equation
1,543,721.14 : 2,130,335.16 = 940,109.14 : x - Step 2: Convert to fraction form
1,543,721.14/2,130,335.16 = 940,109.14/x - Step 3: Cross multiply
1,543,721.14x = 2,130,335.16 × 940,109.14 - Step 4: Simplify right side
1,543,721.14x = 2,002,747,555,179.36 - Step 5: Solve for x
x = 2,002,747,555,179.36/1,543,721.14 - Step 6: Final answer
x = 1,297,350.61
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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.