Finding the Fourth Proportional to 2,862,070.12, 3,949,751.46 and 1,572,956.20
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Solution
The fourth proportional to 2,862,070.12, 3,949,751.46 and 1,572,956.20 is: 2,170,731.60
Step by Step Solution
- Step 1: Write the proportion equation
2,862,070.12 : 3,949,751.46 = 1,572,956.20 : x - Step 2: Convert to fraction form
2,862,070.12/3,949,751.46 = 1,572,956.20/x - Step 3: Cross multiply
2,862,070.12x = 3,949,751.46 × 1,572,956.20 - Step 4: Simplify right side
2,862,070.12x = 6,212,786,047,466.05 - Step 5: Solve for x
x = 6,212,786,047,466.05/2,862,070.12 - Step 6: Final answer
x = 2,170,731.60
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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.