Finding the Fourth Proportional to 4,268,471.40, 6,400,518.30 and 1,276,266.60
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Solution
The fourth proportional to 4,268,471.40, 6,400,518.30 and 1,276,266.60 is: 1,913,745.45
Step by Step Solution
- Step 1: Write the proportion equation
4,268,471.40 : 6,400,518.30 = 1,276,266.60 : x - Step 2: Convert to fraction form
4,268,471.40/6,400,518.30 = 1,276,266.60/x - Step 3: Cross multiply
4,268,471.40x = 6,400,518.30 × 1,276,266.60 - Step 4: Simplify right side
4,268,471.40x = 8,168,767,728,978.78 - Step 5: Solve for x
x = 8,168,767,728,978.78/4,268,471.40 - Step 6: Final answer
x = 1,913,745.45
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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.