Finding the Fourth Proportional to 2,642,412.20, 3,962,840.70 and 749,319.08
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Solution
The fourth proportional to 2,642,412.20, 3,962,840.70 and 749,319.08 is: 1,123,758.11
Step by Step Solution
- Step 1: Write the proportion equation
2,642,412.20 : 3,962,840.70 = 749,319.08 : x - Step 2: Convert to fraction form
2,642,412.20/3,962,840.70 = 749,319.08/x - Step 3: Cross multiply
2,642,412.20x = 3,962,840.70 × 749,319.08 - Step 4: Simplify right side
2,642,412.20x = 2,969,432,147,510.56 - Step 5: Solve for x
x = 2,969,432,147,510.56/2,642,412.20 - Step 6: Final answer
x = 1,123,758.11
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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.