Finding the Fourth Proportional to 1,642,187.74, 2,267,285.42 and 1,469,807.18
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Solution
The fourth proportional to 1,642,187.74, 2,267,285.42 and 1,469,807.18 is: 2,029,288.32
Step by Step Solution
- Step 1: Write the proportion equation
1,642,187.74 : 2,267,285.42 = 1,469,807.18 : x - Step 2: Convert to fraction form
1,642,187.74/2,267,285.42 = 1,469,807.18/x - Step 3: Cross multiply
1,642,187.74x = 2,267,285.42 × 1,469,807.18 - Step 4: Simplify right side
1,642,187.74x = 3,332,472,398,768.05 - Step 5: Solve for x
x = 3,332,472,398,768.05/1,642,187.74 - Step 6: Final answer
x = 2,029,288.32
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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.