Finding the Fourth Proportional to 2,122,271.55, 2,928,717.14 and 1,155,399.84
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Solution
The fourth proportional to 2,122,271.55, 2,928,717.14 and 1,155,399.84 is: 1,594,442.20
Step by Step Solution
- Step 1: Write the proportion equation
2,122,271.55 : 2,928,717.14 = 1,155,399.84 : x - Step 2: Convert to fraction form
2,122,271.55/2,928,717.14 = 1,155,399.84/x - Step 3: Cross multiply
2,122,271.55x = 2,928,717.14 × 1,155,399.84 - Step 4: Simplify right side
2,122,271.55x = 3,383,839,309,184.26 - Step 5: Solve for x
x = 3,383,839,309,184.26/2,122,271.55 - Step 6: Final answer
x = 1,594,442.20
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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.