Finding the Fourth Proportional to 4,158,858.80, 6,238,288.20 and 1,319,193.20
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Solution
The fourth proportional to 4,158,858.80, 6,238,288.20 and 1,319,193.20 is: 1,978,789.80
Step by Step Solution
- Step 1: Write the proportion equation
4,158,858.80 : 6,238,288.20 = 1,319,193.20 : x - Step 2: Convert to fraction form
4,158,858.80/6,238,288.20 = 1,319,193.20/x - Step 3: Cross multiply
4,158,858.80x = 6,238,288.20 × 1,319,193.20 - Step 4: Simplify right side
4,158,858.80x = 8,229,507,373,080.24 - Step 5: Solve for x
x = 8,229,507,373,080.24/4,158,858.80 - Step 6: Final answer
x = 1,978,789.80
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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.