Finding the Fourth Proportional to 1,940,885.21, 2,678,432.20 and 1,125,572.29
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Solution
The fourth proportional to 1,940,885.21, 2,678,432.20 and 1,125,572.29 is: 1,553,295.91
Step by Step Solution
- Step 1: Write the proportion equation
1,940,885.21 : 2,678,432.20 = 1,125,572.29 : x - Step 2: Convert to fraction form
1,940,885.21/2,678,432.20 = 1,125,572.29/x - Step 3: Cross multiply
1,940,885.21x = 2,678,432.20 × 1,125,572.29 - Step 4: Simplify right side
1,940,885.21x = 3,014,769,055,453.73 - Step 5: Solve for x
x = 3,014,769,055,453.73/1,940,885.21 - Step 6: Final answer
x = 1,553,295.91
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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.