Finding the Fourth Proportional to 2,128,635.96, 3,190,181.52 and 864,986.28
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Solution
The fourth proportional to 2,128,635.96, 3,190,181.52 and 864,986.28 is: 1,296,352.83
Step by Step Solution
- Step 1: Write the proportion equation
2,128,635.96 : 3,190,181.52 = 864,986.28 : x - Step 2: Convert to fraction form
2,128,635.96/3,190,181.52 = 864,986.28/x - Step 3: Cross multiply
2,128,635.96x = 3,190,181.52 × 864,986.28 - Step 4: Simplify right side
2,128,635.96x = 2,759,463,245,509.55 - Step 5: Solve for x
x = 2,759,463,245,509.55/2,128,635.96 - Step 6: Final answer
x = 1,296,352.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.