Finding the Fourth Proportional to 2,889,452.40, 4,331,068.20 and 1,091,641.20
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Solution
The fourth proportional to 2,889,452.40, 4,331,068.20 and 1,091,641.20 is: 1,636,286.68
Step by Step Solution
- Step 1: Write the proportion equation
2,889,452.40 : 4,331,068.20 = 1,091,641.20 : x - Step 2: Convert to fraction form
2,889,452.40/4,331,068.20 = 1,091,641.20/x - Step 3: Cross multiply
2,889,452.40x = 4,331,068.20 × 1,091,641.20 - Step 4: Simplify right side
2,889,452.40x = 4,727,972,487,129.84 - Step 5: Solve for x
x = 4,727,972,487,129.84/2,889,452.40 - Step 6: Final answer
x = 1,636,286.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.