Finding the Fourth Proportional to 4,080,429.60, 6,120,874.80 and 1,240,634.40
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Solution
The fourth proportional to 4,080,429.60, 6,120,874.80 and 1,240,634.40 is: 1,861,021.65
Step by Step Solution
- Step 1: Write the proportion equation
4,080,429.60 : 6,120,874.80 = 1,240,634.40 : x - Step 2: Convert to fraction form
4,080,429.60/6,120,874.80 = 1,240,634.40/x - Step 3: Cross multiply
4,080,429.60x = 6,120,874.80 × 1,240,634.40 - Step 4: Simplify right side
4,080,429.60x = 7,593,767,834,973.12 - Step 5: Solve for x
x = 7,593,767,834,973.12/4,080,429.60 - Step 6: Final answer
x = 1,861,021.65
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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.