Finding the Fourth Proportional to 2,157,458.08, 2,977,323.60 and 1,190,633.44
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Solution
The fourth proportional to 2,157,458.08, 2,977,323.60 and 1,190,633.44 is: 1,643,091.50
Step by Step Solution
- Step 1: Write the proportion equation
2,157,458.08 : 2,977,323.60 = 1,190,633.44 : x - Step 2: Convert to fraction form
2,157,458.08/2,977,323.60 = 1,190,633.44/x - Step 3: Cross multiply
2,157,458.08x = 2,977,323.60 × 1,190,633.44 - Step 4: Simplify right side
2,157,458.08x = 3,544,901,039,861.18 - Step 5: Solve for x
x = 3,544,901,039,861.18/2,157,458.08 - Step 6: Final answer
x = 1,643,091.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.