Finding the Fourth Proportional to 2,257,475.36, 3,115,245.84 and 1,238,853.92
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Solution
The fourth proportional to 2,257,475.36, 3,115,245.84 and 1,238,853.92 is: 1,709,579.91
Step by Step Solution
- Step 1: Write the proportion equation
2,257,475.36 : 3,115,245.84 = 1,238,853.92 : x - Step 2: Convert to fraction form
2,257,475.36/3,115,245.84 = 1,238,853.92/x - Step 3: Cross multiply
2,257,475.36x = 3,115,245.84 × 1,238,853.92 - Step 4: Simplify right side
2,257,475.36x = 3,859,334,520,647.69 - Step 5: Solve for x
x = 3,859,334,520,647.69/2,257,475.36 - Step 6: Final answer
x = 1,709,579.91
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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.