Finding the Fourth Proportional to 2,154,048.80, 2,972,466.06 and 1,187,176.12
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Solution
The fourth proportional to 2,154,048.80, 2,972,466.06 and 1,187,176.12 is: 1,638,236.20
Step by Step Solution
- Step 1: Write the proportion equation
2,154,048.80 : 2,972,466.06 = 1,187,176.12 : x - Step 2: Convert to fraction form
2,154,048.80/2,972,466.06 = 1,187,176.12/x - Step 3: Cross multiply
2,154,048.80x = 2,972,466.06 × 1,187,176.12 - Step 4: Simplify right side
2,154,048.80x = 3,528,840,723,942.49 - Step 5: Solve for x
x = 3,528,840,723,942.49/2,154,048.80 - Step 6: Final answer
x = 1,638,236.20
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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.