Finding the Fourth Proportional to 1,994,213.28, 2,992,073.68 and 780,657.12
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Solution
The fourth proportional to 1,994,213.28, 2,992,073.68 and 780,657.12 is: 1,171,280.75
Step by Step Solution
- Step 1: Write the proportion equation
1,994,213.28 : 2,992,073.68 = 780,657.12 : x - Step 2: Convert to fraction form
1,994,213.28/2,992,073.68 = 780,657.12/x - Step 3: Cross multiply
1,994,213.28x = 2,992,073.68 × 780,657.12 - Step 4: Simplify right side
1,994,213.28x = 2,335,783,621,856.60 - Step 5: Solve for x
x = 2,335,783,621,856.60/1,994,213.28 - Step 6: Final answer
x = 1,171,280.75
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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.