Finding the Fourth Proportional to 4,080,321.60, 6,120,712.80 and 1,240,526.40
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Solution
The fourth proportional to 4,080,321.60, 6,120,712.80 and 1,240,526.40 is: 1,860,859.65
Step by Step Solution
- Step 1: Write the proportion equation
4,080,321.60 : 6,120,712.80 = 1,240,526.40 : x - Step 2: Convert to fraction form
4,080,321.60/6,120,712.80 = 1,240,526.40/x - Step 3: Cross multiply
4,080,321.60x = 6,120,712.80 × 1,240,526.40 - Step 4: Simplify right side
4,080,321.60x = 7,592,905,815,217.92 - Step 5: Solve for x
x = 7,592,905,815,217.92/4,080,321.60 - Step 6: Final answer
x = 1,860,859.65
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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.