Finding the Fourth Proportional to 2,157,460.08, 2,977,326.36 and 1,190,635.44
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Solution
The fourth proportional to 2,157,460.08, 2,977,326.36 and 1,190,635.44 is: 1,643,094.26
Step by Step Solution
- Step 1: Write the proportion equation
2,157,460.08 : 2,977,326.36 = 1,190,635.44 : x - Step 2: Convert to fraction form
2,157,460.08/2,977,326.36 = 1,190,635.44/x - Step 3: Cross multiply
2,157,460.08x = 2,977,326.36 × 1,190,635.44 - Step 4: Simplify right side
2,157,460.08x = 3,544,910,280,662.20 - Step 5: Solve for x
x = 3,544,910,280,662.20/2,157,460.08 - Step 6: Final answer
x = 1,643,094.26
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1.5x scale
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.