Finding the Fourth Proportional to 1,872,621.20, 2,804,179.80 and 1,030,221.20
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Solution
The fourth proportional to 1,872,621.20, 2,804,179.80 and 1,030,221.20 is: 1,542,717.49
Step by Step Solution
- Step 1: Write the proportion equation
1,872,621.20 : 2,804,179.80 = 1,030,221.20 : x - Step 2: Convert to fraction form
1,872,621.20/2,804,179.80 = 1,030,221.20/x - Step 3: Cross multiply
1,872,621.20x = 2,804,179.80 × 1,030,221.20 - Step 4: Simplify right side
1,872,621.20x = 2,888,925,478,571.76 - Step 5: Solve for x
x = 2,888,925,478,571.76/1,872,621.20 - Step 6: Final answer
x = 1,542,717.49
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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.