Finding the Fourth Proportional to 3,081,408.65, 4,252,340.72 and 1,723,281.65
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Solution
The fourth proportional to 3,081,408.65, 4,252,340.72 and 1,723,281.65 is: 2,378,126.88
Step by Step Solution
- Step 1: Write the proportion equation
3,081,408.65 : 4,252,340.72 = 1,723,281.65 : x - Step 2: Convert to fraction form
3,081,408.65/4,252,340.72 = 1,723,281.65/x - Step 3: Cross multiply
3,081,408.65x = 4,252,340.72 × 1,723,281.65 - Step 4: Simplify right side
3,081,408.65x = 7,327,980,732,323.79 - Step 5: Solve for x
x = 7,327,980,732,323.79/3,081,408.65 - Step 6: Final answer
x = 2,378,126.88
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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.