Finding the Fourth Proportional to 2,170,065.12, 2,994,967.08 and 1,425,627.60
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Solution
The fourth proportional to 2,170,065.12, 2,994,967.08 and 1,425,627.60 is: 1,967,548.20
Step by Step Solution
- Step 1: Write the proportion equation
2,170,065.12 : 2,994,967.08 = 1,425,627.60 : x - Step 2: Convert to fraction form
2,170,065.12/2,994,967.08 = 1,425,627.60/x - Step 3: Cross multiply
2,170,065.12x = 2,994,967.08 × 1,425,627.60 - Step 4: Simplify right side
2,170,065.12x = 4,269,707,730,339.41 - Step 5: Solve for x
x = 4,269,707,730,339.41/2,170,065.12 - Step 6: Final answer
x = 1,967,548.20
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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.