Finding the Fourth Proportional to 1,415,311.20, 2,122,966.80 and 942,919.20
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Solution
The fourth proportional to 1,415,311.20, 2,122,966.80 and 942,919.20 is: 1,414,378.80
Step by Step Solution
- Step 1: Write the proportion equation
1,415,311.20 : 2,122,966.80 = 942,919.20 : x - Step 2: Convert to fraction form
1,415,311.20/2,122,966.80 = 942,919.20/x - Step 3: Cross multiply
1,415,311.20x = 2,122,966.80 × 942,919.20 - Step 4: Simplify right side
1,415,311.20x = 2,001,786,156,682.56 - Step 5: Solve for x
x = 2,001,786,156,682.56/1,415,311.20 - Step 6: Final answer
x = 1,414,378.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.