Finding the Fourth Proportional to 2,121,390.46, 2,927,820.36 and 1,203,845.68
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Solution
The fourth proportional to 2,121,390.46, 2,927,820.36 and 1,203,845.68 is: 1,661,478.15
Step by Step Solution
- Step 1: Write the proportion equation
2,121,390.46 : 2,927,820.36 = 1,203,845.68 : x - Step 2: Convert to fraction form
2,121,390.46/2,927,820.36 = 1,203,845.68/x - Step 3: Cross multiply
2,121,390.46x = 2,927,820.36 × 1,203,845.68 - Step 4: Simplify right side
2,121,390.46x = 3,524,643,892,202.04 - Step 5: Solve for x
x = 3,524,643,892,202.04/2,121,390.46 - Step 6: Final answer
x = 1,661,478.15
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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.