Finding the Fourth Proportional to 1,555,583.36, 2,145,068.17 and 1,228,353.49
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Solution
The fourth proportional to 1,555,583.36, 2,145,068.17 and 1,228,353.49 is: 1,693,835.28
Step by Step Solution
- Step 1: Write the proportion equation
1,555,583.36 : 2,145,068.17 = 1,228,353.49 : x - Step 2: Convert to fraction form
1,555,583.36/2,145,068.17 = 1,228,353.49/x - Step 3: Cross multiply
1,555,583.36x = 2,145,068.17 × 1,228,353.49 - Step 4: Simplify right side
1,555,583.36x = 2,634,901,972,907.41 - Step 5: Solve for x
x = 2,634,901,972,907.41/1,555,583.36 - Step 6: Final answer
x = 1,693,835.28
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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.