Finding the Fourth Proportional to 3,219,737.40, 4,443,144.99 and 1,769,431.08
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Solution
The fourth proportional to 3,219,737.40, 4,443,144.99 and 1,769,431.08 is: 2,441,763.99
Step by Step Solution
- Step 1: Write the proportion equation
3,219,737.40 : 4,443,144.99 = 1,769,431.08 : x - Step 2: Convert to fraction form
3,219,737.40/4,443,144.99 = 1,769,431.08/x - Step 3: Cross multiply
3,219,737.40x = 4,443,144.99 × 1,769,431.08 - Step 4: Simplify right side
3,219,737.40x = 7,861,838,838,252.29 - Step 5: Solve for x
x = 7,861,838,838,252.29/3,219,737.40 - Step 6: Final answer
x = 2,441,763.99
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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.