Finding the Fourth Proportional to 2,912,658.90, 4,368,988.35 and 1,904,889.30
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Solution
The fourth proportional to 2,912,658.90, 4,368,988.35 and 1,904,889.30 is: 2,857,333.95
Step by Step Solution
- Step 1: Write the proportion equation
2,912,658.90 : 4,368,988.35 = 1,904,889.30 : x - Step 2: Convert to fraction form
2,912,658.90/4,368,988.35 = 1,904,889.30/x - Step 3: Cross multiply
2,912,658.90x = 4,368,988.35 × 1,904,889.30 - Step 4: Simplify right side
2,912,658.90x = 8,322,439,159,739.65 - Step 5: Solve for x
x = 8,322,439,159,739.65/2,912,658.90 - Step 6: Final answer
x = 2,857,333.95
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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.