Finding the Fourth Proportional to 2,121,872.04, 2,928,220.74 and 1,155,030.12
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Solution
The fourth proportional to 2,121,872.04, 2,928,220.74 and 1,155,030.12 is: 1,593,961.88
Step by Step Solution
- Step 1: Write the proportion equation
2,121,872.04 : 2,928,220.74 = 1,155,030.12 : x - Step 2: Convert to fraction form
2,121,872.04/2,928,220.74 = 1,155,030.12/x - Step 3: Cross multiply
2,121,872.04x = 2,928,220.74 × 1,155,030.12 - Step 4: Simplify right side
2,121,872.04x = 3,382,183,152,708.69 - Step 5: Solve for x
x = 3,382,183,152,708.69/2,121,872.04 - Step 6: Final answer
x = 1,593,961.88
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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.