Finding the Fourth Proportional to 2,484,562.20, 3,428,616.42 and 1,396,879.80
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Solution
The fourth proportional to 2,484,562.20, 3,428,616.42 and 1,396,879.80 is: 1,927,649.47
Step by Step Solution
- Step 1: Write the proportion equation
2,484,562.20 : 3,428,616.42 = 1,396,879.80 : x - Step 2: Convert to fraction form
2,484,562.20/3,428,616.42 = 1,396,879.80/x - Step 3: Cross multiply
2,484,562.20x = 3,428,616.42 × 1,396,879.80 - Step 4: Simplify right side
2,484,562.20x = 4,789,365,019,046.32 - Step 5: Solve for x
x = 4,789,365,019,046.32/2,484,562.20 - Step 6: Final answer
x = 1,927,649.47
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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.