Finding the Fourth Proportional to 2,912,553.70, 4,368,830.55 and 1,904,784.10
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Solution
The fourth proportional to 2,912,553.70, 4,368,830.55 and 1,904,784.10 is: 2,857,176.15
Step by Step Solution
- Step 1: Write the proportion equation
2,912,553.70 : 4,368,830.55 = 1,904,784.10 : x - Step 2: Convert to fraction form
2,912,553.70/4,368,830.55 = 1,904,784.10/x - Step 3: Cross multiply
2,912,553.70x = 4,368,830.55 × 1,904,784.10 - Step 4: Simplify right side
2,912,553.70x = 8,321,678,967,234.26 - Step 5: Solve for x
x = 8,321,678,967,234.26/2,912,553.70 - Step 6: Final answer
x = 2,857,176.15
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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.