Finding the Fourth Proportional to 2,585,652.13, 3,878,478.20 and 1,322,790.85
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Solution
The fourth proportional to 2,585,652.13, 3,878,478.20 and 1,322,790.85 is: 1,984,186.28
Step by Step Solution
- Step 1: Write the proportion equation
2,585,652.13 : 3,878,478.20 = 1,322,790.85 : x - Step 2: Convert to fraction form
2,585,652.13/3,878,478.20 = 1,322,790.85/x - Step 3: Cross multiply
2,585,652.13x = 3,878,478.20 × 1,322,790.85 - Step 4: Simplify right side
2,585,652.13x = 5,130,415,474,884.47 - Step 5: Solve for x
x = 5,130,415,474,884.47/2,585,652.13 - Step 6: Final answer
x = 1,984,186.28
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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.