Finding the Fourth Proportional to 2,889,436.48, 3,987,457.68 and 1,600,298.80
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Solution
The fourth proportional to 2,889,436.48, 3,987,457.68 and 1,600,298.80 is: 2,208,431.92
Step by Step Solution
- Step 1: Write the proportion equation
2,889,436.48 : 3,987,457.68 = 1,600,298.80 : x - Step 2: Convert to fraction form
2,889,436.48/3,987,457.68 = 1,600,298.80/x - Step 3: Cross multiply
2,889,436.48x = 3,987,457.68 × 1,600,298.80 - Step 4: Simplify right side
2,889,436.48x = 6,381,123,740,354.78 - Step 5: Solve for x
x = 6,381,123,740,354.78/2,889,436.48 - Step 6: Final answer
x = 2,208,431.92
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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.