Finding the Fourth Proportional to 1,408,020.20, 2,107,364.70 and 988,116.20
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Solution
The fourth proportional to 1,408,020.20, 2,107,364.70 and 988,116.20 is: 1,478,900.09
Step by Step Solution
- Step 1: Write the proportion equation
1,408,020.20 : 2,107,364.70 = 988,116.20 : x - Step 2: Convert to fraction form
1,408,020.20/2,107,364.70 = 988,116.20/x - Step 3: Cross multiply
1,408,020.20x = 2,107,364.70 × 988,116.20 - Step 4: Simplify right side
1,408,020.20x = 2,082,321,199,378.14 - Step 5: Solve for x
x = 2,082,321,199,378.14/1,408,020.20 - Step 6: Final answer
x = 1,478,900.09
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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.