Finding the Fourth Proportional to 1,125,857.49, 1,552,138.87 and 712,188.46
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Solution
The fourth proportional to 1,125,857.49, 1,552,138.87 and 712,188.46 is: 981,843.09
Step by Step Solution
- Step 1: Write the proportion equation
1,125,857.49 : 1,552,138.87 = 712,188.46 : x - Step 2: Convert to fraction form
1,125,857.49/1,552,138.87 = 712,188.46/x - Step 3: Cross multiply
1,125,857.49x = 1,552,138.87 × 712,188.46 - Step 4: Simplify right side
1,125,857.49x = 1,105,415,391,531.44 - Step 5: Solve for x
x = 1,105,415,391,531.44/1,125,857.49 - Step 6: Final answer
x = 981,843.09
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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.