Finding the Fourth Proportional to 4,209,806.40, 6,310,562.40 and 2,080,219.20
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Solution
The fourth proportional to 4,209,806.40, 6,310,562.40 and 2,080,219.20 is: 3,118,279.52
Step by Step Solution
- Step 1: Write the proportion equation
4,209,806.40 : 6,310,562.40 = 2,080,219.20 : x - Step 2: Convert to fraction form
4,209,806.40/6,310,562.40 = 2,080,219.20/x - Step 3: Cross multiply
4,209,806.40x = 6,310,562.40 × 2,080,219.20 - Step 4: Simplify right side
4,209,806.40x = 13,127,353,067,278.08 - Step 5: Solve for x
x = 13,127,353,067,278.08/4,209,806.40 - Step 6: Final answer
x = 3,118,279.52
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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.