Finding the Fourth Proportional to 3,440,515.20, 4,748,198.24 and 1,912,764.48
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Solution
The fourth proportional to 3,440,515.20, 4,748,198.24 and 1,912,764.48 is: 2,639,774.69
Step by Step Solution
- Step 1: Write the proportion equation
3,440,515.20 : 4,748,198.24 = 1,912,764.48 : x - Step 2: Convert to fraction form
3,440,515.20/4,748,198.24 = 1,912,764.48/x - Step 3: Cross multiply
3,440,515.20x = 4,748,198.24 × 1,912,764.48 - Step 4: Simplify right side
3,440,515.20x = 9,082,184,937,470.52 - Step 5: Solve for x
x = 9,082,184,937,470.52/3,440,515.20 - Step 6: Final answer
x = 2,639,774.69
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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.